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, , Information contained in the work has been obtained by Prabhat Paperbacks, from sources believed to be reliable. However,, neither Prabhat Paperbacks nor its authors guarantee the accuracy or completeness of any information published herein,, and neither Prabhat Paperbacks nor its authors shall be responsible for any errors, omissions, or damages arising out, of use of this information. This work is published with the understanding that Prabhat Paperbacks and its authors are, supplying information but are not attempting to render engineering or other professional services., , , , No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means,, electronic, mechanical, photocopying, recording, scanning, or otherwise, without prior written permission of the publisher., , , , All disputes are subject to Delhi jurisdiction only., , Publisher, , Prabhat Prakashan, , 4/19 Asaf Ali Road, New Delhi–110 002, Ph. 23289555 • 23289666 • 23289777 • Helpline/ 7827007777, e-mail: [email protected] • Website: www.prabhatexam.com, © Reserved, Edition, 2021, Price, Two Hundred Eighty Five Rupees, ISBN ISBN 978-93-5322-575-9, Printed at, Nakshatra Art, Delhi, , NEET 15 Mock test, cOMBINED:, pHYSICS, Chemistry AND bIOLOGY, by Team Prabhat, Published by Prabhat Prakashan, 4/19 Asaf Ali Road, New Delhi–110 002, ISBN ISBN 978-93-5322-575-9, ` 285.00

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CONTENTS, l, , Mock Test – 1 Physics......................................................................................................................................1-8, , l, , Mock Test – 2 Physics....................................................................................................................................9-16, , l, , Mock Test – 3 Physics..................................................................................................................................17-22, , l, , Mock Test – 4 Physics..................................................................................................................................23-28, , l, , Mock Test – 5 Physics..................................................................................................................................29-34, , l, , Mock Test – 1 Chemistry.............................................................................................................................35-40, , l, , Mock Test – 2 Chemistry.............................................................................................................................41-46, , l, , Mock Test – 3 Chemistry.............................................................................................................................47-52, , l, , Mock Test – 4 Chemistry.............................................................................................................................53-58, , l, , Mock Test – 5 Chemistry.............................................................................................................................59-64, , l, , Mock Test – 1 Biology.................................................................................................................................65-74, , l, , Mock Test – 2 Biology.................................................................................................................................75-82, , l, , Mock Test – 3 Biology.................................................................................................................................83-90, , l, , Mock Test – 4 Biology.................................................................................................................................91-98, , l, , Mock Test – 5 Biology...............................................................................................................................99-105

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1, , Mock Test-1, , No. ………………….…………., , Test Booklet code, , Mock Test NEET/Premedical, , AA, , This Test Booklet contain 34 pages., Do not open this Test Booklet until you are asked to do so., Important Instructions:, 1., , The Answer Sheet is inside this Test Booklet. When you are directed to open the test Booklet, take out the Answer Sheet and fill in the particulars on, Side-1 and Side-2 carefully with Blue/Black ballpoint pen only., , 2., , The test is of 3 hours duration and Test Booklet contains 180 questions. Each question carries 4 marks. For each incorrect response, one mark will be, deducted from the total score. The maximum marks are 720., , 3., , Use Blue/Black Ballpoint Pen only for writing particulars on this page/marking responses., , 4., , Rough work is to be done on the space provided for this purpose in the test booklet only., , 5., , One completion of the test, the candidate must hand over the Answer Sheet to the invigilator before leaving the Room/Hall. The candidates are allowed, to take away Test Booklet only with them., , 6., , The CODE for this test Booklet is AA. Make sure that the CODE printed on Side-2 of the Answer Sheet is the same as that on this test Booklet. In case, of discrepancy, the candidate should immediately report the matter to the Invigilator for replacement of both the Test Booklet and the Answer Sheet., , 7., , The candidate should ensure that the Answer Sheet is not folded. Do not make any stray make on the Answer Sheet. Do not write you Roll No., anywhere else except in the specified space in the Test Booklet/Answer Sheet., , 8., , Use of white fluid for correction is not permissible on the Answer Sheet., , 9., , Each candidate must show on demand his/her Admit Card to the Invigilator., , 10. No candidate, without special permission of the Superintendent or Invigilator, would leave his/her seat., 11. The candidates should not leave the Examination Hall without handing over their Answer Sheet to the Invigilator on duty and sign the Attendance Sheet, twice. Cases where a candidate has not signed the Attendance Sheet second time will be deemed not to have handed over the Answer Sheet and, dealt with as an unfair means case., 12. Use of Electronic/Manual Calculator is prohibited., 13. The Candidates are governed by all Rules and Regulations of the board with regard to their conduct in the Examination Hall. All case of unfair means, will be dealt with as per Rules and Regulations of the Board., 14. No part of the Test Booklet and Answer Sheet shall be detached under any circumstances., 15. The candidates will write the correct Test booklet code as given in the Test Booklet/Answer Sheet in the Attendance Sheet., , NOTE: It’s the mock test as per previous year paper; sometimes NEET changes the test paper pattern and marking scheme too., PAPER CONSISTS, Physics: 45, Chemistry: 45 and Biology: 90 Questions each, , Name of the Candidate (in Capital letters): ____________________________________________________________________________________________, Roll Number, , : In figures ______________________________________________________________________________________________________, : In words _______________________________________________________________________________________________________, , Centre of Examination (in Capital letters): __________________________________________________________________________________________, Candidate’s Signature: _________________________________________ Invigilator’s Signature: _______________________________________________, Facsimile Signature Stamp of Centre superintendent: ___________________________________________________________________________________

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Physics, , 2, , Mock Test-1, 1., , The unit of Stefan's constant σ is:, −2, , a. W m K, 2., , −1, , 2, , b. W m K, , −2, , c. W m K, , −4, , −2, , d. W m K, , 2, b. m /sec, , The lines, , r, r = 2kˆ + λ (3iˆ + 2 ˆj + kˆ) and, , r, r = 3 iˆ + 2 ˆj + 3kˆ, , a. non-intersecting, b. non-coplanar, c. intersects exactly at one point, d. intersect at more than one point, r r r, Let a , b , c be vectors of length 3, 4, 5 respectively. Let, r r r, r r, r, r, r, r, a be perpendicular to b + c , b to c + a & c to a + b ., r r r, Then, a + b + c is:, a. 2 5, , 5., , b. 2 2, , d. 5 2, , c. 10 5, , The velocity-displacement curve for an object moving, along a straight line is shown in the figure. At which of, the points marked, the object is speeding up?, v, 1, •, 2•, , •3, , s, , a. 1, 6., , If a person with a spring balance and a body hanging from, it goes up and up in an aeroplane, then the reading of the, weight of the body as indicated by the spring balance will:, a. go on increasing, b. go on decreasing, c. first increase and then decrease, d. remain the same, , 9., , A body of mass m kg is lifted by a man to a height of 1 metre, in 30 sec. Another man lifts the same mass to the same height, in 60 sec. The work done by them are in the ratio:, a. 1 : 2, b. 1 : 1, c. 2 : 1, d. 4 : 1, , 3, b. m / sec, , 2, c. m / sec, , + µ (6 iˆ + 4 ˆj + 2kˆ) are:, , 4., , 8., 4, , The velocity of a particle depends upon as v = a + bt + ct 2 ;, if the velocity is in m / sec , the unit of a will be:, a. m / sec, , 3., , −4, , b. 2, , c. 1 and 3, , d. 1, 2 and 3, , Two cars A and B are traveling in the same direction with, , 10. A cord is used to lower vertically a block of mass M by a, g, distance d with constant downward acceleration . Work, 4, done by the cord on the block is:, d, d, d, a. Mg, b. 3Mg, c. − 3 Mg, d. Mgd, 4, 4, 4, 11. One-quarter section is cut from a uniform circular disc of, radius R. This section has a mass M. It, is made to rotate about a line, perpendicular to its plane and passing, through the centre of the original disc., Its moment of inertia about the axis of rotation is:, a., , 1, MR 2, 2, , 1, b. MR 2, 4, , c., , 1, MR 2, 8, , d., , 12. Consider a body, shown in figure, consisting of two, identical balls, each of mass M connected by a light rigid, rod. If an impulse J = Mv is imparted to the body at one, of its end, what would be its angular velocity?, , velocities VA and VB (VA > VB ) . When the car A is at a, distances s behind the car B, the driver to the car A applies, the brakes producing a uniform retardation a; there will, be no collision when:, a. s <, c. s ≥, , (VA − VB )2, 2a, , (VA − VB ), 2a, , b. s =, , 2, , d. s ≤, , (VA − VB )2, 2a, , (VA −VB )2, , L, M, , a. v / L, , 2a, , A coin is dropped in a lift. It takes time t 1 to reach the, floor when lift is stationary. It takes time t 2 when lift is, moving up with constant acceleration. Then, b. t 2 > t1, c. t1 = t 2, d. t 1 >> t 2, a. t1 > t2, , M, , b. 2v / L, , c. v / 3L, , d. v / 4L, , 13. The amplitude of a particle executing S.H.M. with, frequency of 60 Hz is 0.01 m. The maximum value of the, acceleration of the particle is:, a. 144π 2m /sec 2, b. 144m /sec 2, c., , 7., , 2MR 2, , 144, , π2, , m /sec 2, , d. 288π 2m /sec 2, , 14. The total energy of a particle, executing simple harmonic, motion is:, a. ∝ x, b. ∝ x 2, c. Independent of x, d. ∝ x 1 / 2

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3, , Mock Test-1, , 15. An earth satellite is moved from one stable circular orbit, to a further stable circular orbit, which one of the, following quantities increase?, a. Gravitational force, b. Gravitational P.E., c. Linear orbital speed, d. Centripetal acceleration, 2, , 16. If the value of g at the surface of the earth is 9.8 m/sec ,, then the value of g at a place 480 km above the surface of, the earth will be: (Radius of the earth is 6,400 km), a. 8.4 m /sec2, , b. 9.8m / sec2, , c. 7.2m / sec2, , d. 4.2m / sec2, , 17. The value of g at a place decreases by 2%. The barometric, height of mercury:, a. increase by 2%, b. decreases by 2%, c. remain unchanged, d. sometimes increases and sometimes decreases, 18. Two bodies with volumes V and 2V are in equilibrium on, a balance. The larger body is then immersed in oil of, density ρ = 0.9 × 10 3 kg/m 3 . What must be the density of, the liquid in which a smaller body is simultaneously, immersed so as not to disturb the equilibrium of the, balance?, a. 0.9 × 10 3 kg/m 3, b. 1.8 × 10 3 kg/m 3, , c. 0.45 × 10 3 kg/m 3, , 1/ 2, ,  2ρ − 1 , a. 300 , ,  2ρ , ,  2ρ , b. 300 , ,  2ρ − 1 , ,  2ρ , c. 300 , ,  2ρ −1 , ,  2ρ −1 , d. 300 , ,  2ρ , , 23. If a thermometer reads freezing point of water as 20°C, and boiling point as 150°C, how much thermometer read, when the actual temperature is 60°C?, a. 98°C, b. 110°C, c. 40°C, d. 60°C, 24. When a bimetallic strip is heated, it, a. does not bend at all, b. gets twisted in the form of an helix, c. bend in the form of an arc with the more expandable, metal outside, d. bends in the form of an arc with the more expandable, metal inside, 25. Two spherical vessel of equal volume, are connected by a, n arrow tube. The apparatus contains an ideal gas at one, atmosphere and 300 K. Now if one vessel is immersed in a, bath of constant temperature 600 K and the other in a bath, of constant temperature 300 K. Then, the common, pressure will be:, , d. 1.35 × 103 kg/m 3, , 19. If x longitudinal strain is produced in a wire of Young's, modulus y, then the energy stored in the material of the, wire per unit volume is:, 1, 1, a. yx 2, b. 2yx2, c. y 2 x, d. yx 2, 2, 2, 20. If Young's modulus for a material is zero, then the state of, material should be:, a. Solid, b. Solid but powder, c. Gas, d. None of the above, 21. A cylindrical tube, open at both ends, has a fundamental, frequency f in air. The tube is dipped vertically in water so, that half of its lengths is in water. The fundamental, frequency of the air column is now:, a. f / 2, b. 3 f / 4, c. f, d. 2 f, 22. An object of specific gravity ρ is hung from a thin steel, wire. The fundamental frequency for transverse standing, waves in the wire is 300 Hz. The object is immersed in, water, so that one half of its volume is submerged. The, new fundamental frequency (in Hz) is:, , 1/ 2, , B, , A, , a. 1 atm, , b., , 4, atm, 5, , c., , 4, atm, 3, , d., , 3, atm, 4, , 26. If pressure of CO 2 (real gas) in a container is given by, P=, , RT, a, − 2 then mass of the gas in container is:, 2V − b 4 b, , a. 11 gm, , b. 22 gm, , c. 33 gm, , d. 44 gm, , 27. Two metallic spheres S1 and S 2 are made of the same, material and have got identical surface finish. The mass of, S1 is thrice that of S 2 . Both the spheres are heated to the, same high temperature and placed in the same room, having lower temperature but are thermally insulated from, each other. The ratio of the initial rate of cooling of S1 to, that of S 2 is:, , a., , 1, 3, , b., , 1, 3, , c., , 3, 1, , 1/ 3, , 1, d.  ,  3, , 28. Starting with the same initial conditions, an ideal gas, expands from volume V1 to V2 in three different ways,

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Physics, , 4, , the work done by the gas is W1 if the process is purely, , 1Ω, , b, , isothermal, W2 if purely isobaric and W3 if purely, adiabatic, then, a. W2 > W1 > W3, , b. W2 > W3 > W1, , c. W1 > W2 > W3, , d. W1 > W3 > W2, , 5Ω, 10µF, , S2, 3Ω, , 3Ω, a, S1, , 24V, , 29. Two rods of same length and material transfer a given, amount of heat in 12 seconds, when they are joined end to, end. But when they are joined lengthwise, then they will, transfer same heat in same conditions in, a. 24 s, b. 3 s, c. 1.5 s, d. 48 s, , 37. A moving coil galvanometer is converted into an ammeter, reading up to 0.03 A by connecting a shunt of resistance, , 30. Hot water cools from 60°C to 50°C in the first 10, minutes and to 42°C in the next 10 minutes. The, temperature of the surrounding is:, a. 5°C, b. 10°C, c. 15°C, d. 20°C, , when a shunt of resistance r is connected across it. What, is the maximum current which can be sent through this, galvanometer if no shunt is used?, a. 0.01 A, b. 0.02 A, c. 0.03 A, d. 0.04 A, , 31. There are two charges +1 microcoulombs and +5, microcoulombs. The ratio of the forces acting on them, will be:, a. 1 : 5, b. 1 : 1, c. 5 : 1, d. 1 : 25, 32. ABC is a right angled triangle in which AB = 3cm and, , BC = 4cm . And ∠ ABC = π/2. The three charges, +15, + 12 and −20 e.s.u. are placed respectively on A, B, and C. The force acting on B is:, , a. 125dynes, , b. 35dynes, , c. 25dynes, , d. Zero, , 33. The capacity of a parallel plate capacitor increases with, the:, a. Decrease of its area, b. Increase of its distance, c. Increase of its area, d. None of the above, 34. When a slab of dielectric material is introduced between, the parallel plates of a capacitor which remains connected, to a battery, then charge on plates relative to earlier, charge:, a. Is less, b. Is same, c. Is more, d. May be less or more depending on the nature of the, material introduced, , a. 4 V, , b. 8 V, , c. 12 V, , 4r across it and into an ammeter reading up to 0.06 A, , 38. A long magnetic needle of length 2L, magnetic moment M, and pole strength m units is broken into two pieces at the, middle. The magnetic moment and pole strength of each, piece will be:, M m, m, M, a., b. M ,, c., d. M , m, ,, ,m, 2 2, 2, 2, 39. The earth's magnetic field at a certain place has a, horizontal component 0.3 Gauss and the total strength 0.5, Gauss. The angle of dip is:, , 4, 3, 3, c. tan −1, d. sin −1, 3, 5, 4, ur, 40. The magnetic field d B due to a small current element, r, ur, d l at a distance r and element carrying current i is,, a. tan −1, , 3, 4, , b. sin −1, , or, Vector form of Biot-Savart's law is:, r ur, ur µ  dl × r , ur, 0, a. d B =, b. d B =, i, , 4π  r , r ur, ur µ 2  dl × r , ur, 0, c. d B =, d. d B =, i , , 2, , 4π  r, , , r ur, , µ0 2  dl × r, i , 4π  r, µ0, 4π, , , , , , r ur,  dl × r , i,  r 2 , , , , 41. A vertical wire kept in Z-X plane carries a current from Q, to P (see figure). The magnetic field due to current will, have the direction at the origin O along:, Z, , P, Y, , 35. When the length and area of cross-section both are, doubled, then its resistance, a. Will become half, b. Will be doubled, c. Will remain the same, d. Will become four times, , i, , O, , X, , X′, Y′, , 36. In the circuit shown in figure, switch S1 is initially closed, and S2 is open. Find Va – Vb?, , d. 16 V, , a. OX, , b. OX ', , Q, Z', , c. OY, , d. OY '

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5, , Mock Test-1, , 42. A coil having 500 square loops each of side 10 cm is, placed normal to a magnetic flux which increases at the, rate of 1.0 tesla/second. The induced e.m.f. in volts is:, a. 0.1, b. 0.5, c. 1, d. 5, , r r r r r r, r r r, Q a . b = b . c = c . a = 0 now square a + b + c to get the result, , 5., , 43. A coil of Cu wire (radius-r, self inductance-L) is bent in, , r, . The self, 2, , two concentric turns each having radius, , inductance now:, a. 2L, b. L, c. 4 L, d. L / 2, 44. Choke coil is used to control, a. AC, b. DC, c. Both AC and DC, d. Neither AC nor DC, 45. In a series circuit R = 300 Ω, L = 0.9 H, C = 2.0, µ F and ω = 1000 rad/sec . The impedance of the, circuit is:, a. 1300 Ω, , b. 900 Ω, , c. 500 Ω, , 6., , dv, , we can find the sing of acceleration at, ds, various points. v is +ve for all three points 1, 2 and 3., dv, is +ve for point 1, zero for point 2 and –ve for point 3., ds, So only for point 1, velocity and acceleration have same, sign. So object is speeding up at point 1 only., (a) From a = υ, , (c) For no collision, the speed of car A may be reduced to, VB before the cars meet, i.e., final relative velocity of car, A with respect to car B is zero, i.e., Vr = 0 here, ur =, initial relative velocity = VA − VB Relative acceleration, , = ar = −a − 0 = −a ., Then using the equation, υ 2 = u 2 + 2as, , d. 400 Ω, , 0 = (VA − VB ) = 2as′ or s′ =, 2, , Answers and Solutions, , 1., , 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , c, , a, , d, , d, , a, , c, , a, , c, , b, , c, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , A, , a, , d, , c, , b, , a, , c, , b, , d, , b, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , c, , a, , a, , c, , c, , b, , d, , a, , d, , b, , 31., , 32., , 33., , 34., , 35., , 36., , 37., , 38., , 39., , 40., , b, , b, , c, , c, , d, , b, , c, , c, , c, , c, , 41., , 42., , 43., , 44., , 45., , c, , d, , a, , d, , c, , σ=, , 3., , =, , s′ ≤ s,, , i.e.,, , (a) For stationary lift t1 =, , 2a, , (VA − VB ), 2a, , 2h, and when the lift is, g, 2h, g +a, , (c) Initially due to upward acceleration apparent weight of, the body increases but then it decreases due to decrease in, gravity., , 9., , (b) Work done does not depend on time., g, 4, , then tension in the cord, , 2λ = 4µ + 2, , = Td cos(180 °) = −, , . . .(ii), , r r r, a . b + c = 0, , r r r, r r, ., 0, +, =, b, c, a, (d), (, )  ⇒ ar . b + b . cr + cr . ar = 0, , r r r, c . a + b = 0, , , d, , d,  3 Mg ,  × d = −3 Mg, 4, 4, , , , . . .(iii), , (i) , (ii) and (iii) are identical. Hence infinite solution, , T, , g 3, , T = M  g −  = Mg, 4 4, , , Work done by the cord = F .s = Fs cos θ, , ), , t2 =, , 8., , (d) The lines are parallel. If they are coincident , the equation, 3λ = 6µ + 3, . . .(i), , (, , ≤s, , moving up with constant acceleration, , acceleration, , (a) Quantities of similar dimensions can be added or, subtracted so unit of a will be same as that of velocity., , ), , 2, , 10. (c) When the block moves vertically downward with, , Watt - m −2, = Watt − m − 2 K − 4, K4, , (, , 2, , ∴ t1 > t2, , Energy, Watt, =, Area × Time, m2, , 2 + λ = 3 + 2µ ⇒ λ = 2 µ + 1, , 4., , 7., , E, (c) Stefan's law is E = σ (T 4 ) ⇒ σ = 4, T, , where, E, , 2., , For no collisions, , (VA − VB ), , 11. (a) Mass of the whole disc = 4M, Moment of inertia of the disc about the given axis, 1, = ( 4 M ) R 2 = 2 MR 2, 2, ∴ Moment of inertia of quarter section of the disc, , =, , 1, ( 2MR2 ) = 12 MR 2, 4

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Physics, , 6, , Note: These type of questions are often asked in objective, student generally error in taking mass of the whole disc., They take it M instead of 4M., 12. (a) Let ω be the angular velocity of the rod. Applying,, angular impulse = change in angular momentum about, centre of mass of the system J ., M, , L, = Ic ω, 2, , Since, tube is half dipped in water, lc =, , ∴, , fc =, , l0, 2, , v, v, =, = f0 = f,  l  2l0, 4 0 , 2, , 22. (a) The diagrammatic representation of the given problem, is shown in figure. The expression of fundamental, frequency is:, , M, T, , T, , J=Mv, ,  ML2, L,  = ( 2) , 2,  4, , ∴, , ( Mv ) , , ∴, , ω=, , , ω, , , Water, , ρ w = 1 g / cm3, , v, L, , v=, , 13. (d) − aω when it is at one extreme point., 2, , 14. (c) Total energy =, 15. (b) U =, , ∴, , −GMm, . If r increases then U also increases., r, , 16. (a) The value of g on the surface of the earth g ∝, , R2, , 9.8 × (6400)2, , T, , µ, , In air T = mg = (V ρ ) g, , 1, mω 2 a 2 = constant, 2, , At height h from the surface of the earth g ′ ∝, , 1, 2l, , v=, , 1, 2l, , Aρ g, , . . . (i), , µ, , When the object is half immersed in water, V , V , T ' = mg − upthrust = V ρ g −   ρ w g =   g ( 2 ρ − ρ w ), 2,  , 2, , 1, R2, , The new fundamental frequency is:, , 1, v' =, , ( R + h) 2, , (Vg / 2 )( 2 ρ − ρ ), , 1, T' 1, ×, =, 2l, µ 2l, , . . . (ii), , µ, , ( 2 ρ − ρ w ) , , ∴, , 17. (c) Pressure = force exerted by air column. When g, decreases, the force due to air column also decreases; so, barometric height remains unchanged., , v' , =, v , , , or, , , v' = v, , , , 18. (b) For equilibrium the force of buoyancy on both sides, should be same., i.e., ρ l = 1.8 × 10 3 kg / m3, ,  2ρ −1 , ⇒ 300 ,  Hz,  2ρ , 23. (a) Temperature on any scale can be converted into other, , ∴, , g′ = g, , ( R + h), , 2, , =, , (6400 + 480), , 2, , = 8.4 m/s 2, , 19. (d) Energy stored per unit volume =, , 1, × Stress × Strain, 2, , 1, 1, = × Young's modulus × (Strain) 2 = × Y × x 2, 2, 2, 20., , (b) Y is defined for solid only and for powders, Y = 0 ., , 21. (c) Initially the tube was open at both ends and then it is, closed., , f0 =, , v, v, and fc =, 2l0, 4lc, , 2ρ, , , , 1/ 2, , ( 2ρ − ρw ) , 2ρ, , , , , 1/ 2, , scale by, , x − LFP, UFP − LFP, , = Constant for all scales, , x − 20, 60, =, ⇒ x = 98 ° C, 150 − 20 100, , 24. (c), , B, A, , αA, , αA >αB, B, , A, , αB, , αB, αA

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7, , Mock Test-1, , A bimetallic strip on being heated bends in the form of an, arc with more expandable metal (1) outside (as shown…), correct., , 29. (d) Let the heat transferred be Q., l, , l, l, , 25. (c) Temperature of the gas is concerned only with its, disordered motion. It is no way concerned with its ordered, motion., , When, rods are joined end to end. Heat transferred by, each rod:, KA∆θ, . . . (i), =Q=, × 12, l, KA∆θ, When rods are joined lengthwise, Q =, t . . . (ii), 2l, From equation (i) and (ii) we get t = 48 s, , Motion of train (order, of motion), Motion of molecule, (Disordered motion), , 26. (b) Van der wall's gas equation for µ mole of real gas:, , , µ 2a , µ RT µ 2 a, −,  P + 2  (V − µb ) = µ RT ⇒ P =, V , V − µb V 2, , On comparing the given equation with this standard, 1, m, equation we get µ = . Hence µ =, ⇒ mass of gas, 2, M, 1, m = µ m = × 44 = 22 gm., 2, , 30. (b) According to Newton's law of cooling, θ1 − θ 2, t, , In the first case,, , 0.8 = K (46 − θ 0 ), , ∆T eσ AT 4, =, mc, ∆t, , 4, m = π r3ρ, 3, ,  3m , A = 4π r 2 = 4π , ,  4πρ , , for, , a, , For the given two bodies, , or 46 − θ 0 = 44 − 0.8θ 0 ⇒ θ 0 = 10o C, , sphere,, , we, , get, , 31. (b) The same force will act on both bodies although their, directions will be different., , 2/3, , , 1, = K , m, , , ( ∆T / ∆t )1, ( ∆T / ∆t ) 2, , 1/ 3, , m , = 2 ,  m1 , , 3 cm, 1/ 3, , 1, = ,  3, , B, +12 esu, , 1, 3, , FC =, , ( Area )2 > ( Area )1 > ( Area )3, ∴, , W2 > W1 > W3, , – 20 esu, , 4 cm, Fnet =, , 2, , 2, , F A + FC, , Net force on B Fnet = FA2 + FC2, FA =, , V, , C, , FC, , FA, , 2, , V2, , +15 esu, , A, , 1/ 3, , 28. (a) The corresponding p-V graphs (also called indicate, diagram) in three different processes will be as shown., Area under the graph gives the work done by the gas., , V1, , 1, 55 − θ 0, =, 0.8 46 − θ 0, , 32. (c), , ∆T eσ T   3m , =, 4π , , ∆t, mc   4πρ , , A, , . . . (ii), , 2/3, , 4, , p, , (50 − 42),  50 + 42, , =K, − θ0 , 10, 2, , , , Dividing (i) by (ii), we get, , Since, ∆ Q = mc ∆ T , we get, , Hence,, , . . . (i), , In the second case,, , ∆sq, = eσ AT 4, ∆t, , since, , (60 − 50),  60 + 50, , =K, − θ0 , 10,  2, , , 1 = K (55 − θ ), , 27. (d) The rate at which energy radiates from the object is:, , Also,, , θ + θ 2, , = K 1, − θ0 ,  2, , , ⇒, , 15 × 12, , (3), , 2, , 12 × 20, , (4), , 2, , = 20 dyne ,, = 15 dyne, , Fnet = FA2 + FC2 = (20) 2 + (15) 2 = 25 dyne, , 33. (c) Capacity of parallel plate capacitor C =, , ε0 A, d, , ⇒C ∝ A

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Physics, , 8, , 34. (c) When dielectric is introduced, the capacitance will, increase and as the battery remains connected, so the, voltage will remain constant. Hence according to, Q, = CV, the charge will increase., , ∴, , B 2 = BV2 + BH2 ⇒ BV = B 2 − BH2 = (0.5) 2 − (0.3) 2 = 0.4, Now tan φ =, , 36. (b) Switch S 2 is open so capacitor is not in circuit., b, , ⇒, , ⇒, 24 V, , ∴, ∴, ∴, ∴, ∴, , 24, =4A, 3+3, Let potential of point ‘O’ shown in fig. is VO, Current through 3Ω resistor =, , then using ohm’s law, VO − Va = 3 × 4 = 12V, , From equation (i) and (ii) Vb − Va = 12 − 4 = 8V ., , 37. (b), ∴, , ∴, , ig, i, , =, , S, ⇒ i g G = (i − i g ) S, G+S, ig G = (0.03 − ig )4r, , 43. (a) Q L ∝ N 2 r;, 2, , L1  N1  r1, =,  ×, L2  N 2  r2, 2, , ⇒, , L, 1,  r  1, =   ×, =, L2  2 , r /2 2, , L2 = 2L, , 44. (d) Given ω L =, , . . . (ii), From (i) and (ii) 0.12 − 4ig = 0.06 − ig ⇒ ig = 0.02 A., , 38. (c), , 1, , ωC, , ⇒ ω2 =, , 1, , 1, , or, , ω=, , ⇒, , X L = ω L = 104 ×10−3 = 10 Ω, , −3, , 10 × 10 × 10, , −6, , =, , 10−8, , 1, LC, , = 104, , 45. (c) For series R-L-C circuit,, S, , N, , ⇒, , S, , 2L, , ∴, , 42. (d) Induced charge doesn’t depend upon the speed of, magnet., , ig G = (0.06 − ig )r, , and, , ∴, , 41. (d) Use Right hand palm rule, or Maxwell’s Cork screw, rule or any other., , ⇒, , . . . (i), ∴, , µ 0 idl sin θ, ⋅, 4π, r2, r ur, ur µ i (dl × r ), dB = 0 ⋅, 4π, r3, , . . . (i), , 24, Now current through 5Ω resistor =, = 4A, 5 +1, So V0 − Vb = 4 ×1 = 4V, . . . (ii), , ∴, , 4, 3, , 40. (d) dB =, , 3Ω, a, , ∴, , BV, 0. 4 4, =, =, BH 0.3 3, , φ = tan −1   ., , 5Ω, , O, , 3Ω, , Pole strength of each part = m, , M, 2, , 39. (c), , l, l, 2l, 35. (c) R1 ∝ ⇒ R2 ∝, i.e. R2 ∝, A, 2A, A, ∴, R1 = R2, , 1Ω, , Magnetic moment of each part = M ′ = m ′L ′ = mL =, , N, L, , N, L, , Z=, , R 2 + (X L − X C )2, 2, , , 106 , = (300) + 1000 × 0.9 −,  = 500Ω, 1000 × 2 , , 2

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9, , Mock Test-2, , Mock Test-2, 1., , A short linear object of length l lies along the axis of a, concave mirror of focal length f at a distance u from the, pole of the mirror. The size of the image is approximately, equal to, 1/ 2, , u− f , a. l , ,  f , , u− f , b. l , ,  f , , 1/ 2, , 2., , 2, , 6., , a. 8 ×10−11 s, , b. 8 ×10−10 s, , c. 8 ×10−9 s, , d. 8 ×10−8 s, , 7., , Which of the following statement is not correct?, a. Photographic plates are sensitive to infrared rays, b. Photographic plates are sensitive to ultraviolet rays, c. Infra-red rays are invisible but can cast shadows like, visible light, d. Infrared photons have more energy than photons of, visible light, , 8., , The figure shows the variation of photocurrent with anode, potential for a photo-sensitive surface for three different, , 2, ,  f ,  f , c. l , d. l , , , u− f , u− f , A small fish 0.4 m below the surface of a lake is viewed, through a simple converging lens of focal length 3 m. The, lens is kept at 0.2 m above the water surface such that fish, lies on the optical axis of the lens. The image of the fish, , In above question, the coherence time will be, , 4, , seen by observer will be at  µ water =  :, 3, , , radiations. Let I a , I b and I c be the intensities and f a , fb, and f c be the frequencies for the curves a, b and c, respectively., Photo current, , 0.2m, c, , b, , 0.4m, , a, O, , a. A distance of 0.2 m from the water surface, b. A distance of 0.6 m from the water surface, c. A distance of 0.3 m from the water surface, d. The same location of fish, 3., , Light of wavelength 6000 12 × 10−6 m is incident on a, single slit. First minimum is obtained at a distance of 0.4, cm from the centre. If width of the slit is 0.3 mm, then, distance between slit and screen will be:, a. 1.0 m, b. 1.5 m, c. 2.0 m, d. 2.3 m, , 4., , A plane electromagnetic wave of frequency, , w0 falls, , normally on the surface of a mirror approaching with a, relativistic velocity v. Then frequency of the reflected, , ν, , wave will be  given β =  :, c, ,  1− β , a. ,  w0,  1+ β , , c., 5., , (1 + β ) w0, (1 − β ), , Anode potential, , a. f a = f b and la ≠ lb, , b. f a = f c and la = lc, , c. f a = f b and la = lb, , d. f a = f b and la = lb, , The ratio of specific charge e / m of an electron to that of, a Hydrogen ion is, a. 1 : 1, b. 1840 : 1, c. 1 : 1840, d. 2 : 1, 10. The energy required to excite an electron from the ground, state of hydrogen atom to the first excited state, is:, , 9., , a. 1.602 × 10 −14 J, , b. 1.619 × 10 −16 J, , c. 1.632 ×10−18 J, , d. 1.656 ×10−20 J, , 11. A nucleus ZXA emits 9α-particles and 5p particle. The ratio, of total protons and neutrons in the final nucleus is:, , b., , 1+ β, (1 − β )w0, , a., , Z − 13, ( A − Z − 23), , b., , ( Z − 18), ( A − 36), , d., , (1 − β ), (1 + β )w0, , c., , ( Z − 13), ( A − 36), , d., , ( Z − 13), ( A − Z − 13), , In the above question wavelength is, a. 666 nm, b. 666 Å, c. 666 µm, d. 6.66 nm0, , 12. 1 mg gold undergoes decay with 2.7 days half-life period,, amount left after 8.1 days is:, a. 0.91 mg, b. 0.25 mg, c. 0.5 mg, d. 0.125 mg

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Physics, , 10, , 13. In a radio receiver, the short wave and medium wave, stations are tuned by using the same capacitor but coils of, different inductance Ls and Lm respectively then, a. Ls > Lm, b. Ls < Lm, c. Ls = Lm, d. None of these, 14. An antenna current of an AM broadcast transmitter, modulated by 50% is 11 A. The carrier current is:, a. 10.35 A, b. 9.25 A, c. 10 A, d. 5.5 A, 15. The unit of specific resistance:, a. Ohm / cm 2, , b. O hm / cm, , c. O h m − c m, , d. (Ohm − cm)−1, , 16. One yard in SI units is equal:, a. 1.9144 meter, b. 0.9144 meter, c. 0.09144 kilometer, d. 1.0936 kilometer, 17. If the three points with position vectors (1, a, b) ; (a, 2, b) and, (a, b, 3) are collinear in space, then the value of a + b is:, a. 3, b. 4, c. 5, d. none, , c., , d., , iˆ + ˆj, 2, , 19. If the velocity of the motorcycle v is constant, then, determine the velocity of the mass as a function of x., Given that ends P and R are co-incident on Q when x = 0:, , a., , c., , xυ, H 2 + x2, H 2 + x2, xv, , b., , d., , c. t = t1 t2, , b. t =, , t1 − t2, 2, , d. t =, , t1, t2, , 21. A mass of 1 kg is suspended by a string A. Another string, C is connected to its lower end (see figure). If a sudden, jerk is given to C, then, A, a. The portion AB of the string will break, b. The portion BC of the string will break, 1kg B, c. None of the strings will break, d. The mass will start rotating, C, 22. A body of mass 2 kg has an initial velocity of 3 metres per, second along OE and it is subjected to a force of 4 N in a, direction perpendicular to OE. The distance of the body, from O after 4 seconds will be:, a. 12 m, b. 20 m, c. 8 m, d. 48 m, 23. A force acts on a 30 gm particle in such a way that the, position of the particle as a function of time is given by, The work done during the first 4 seconds is:, a. 5.28 J, b. 450 mJ, c. 490 mJ, d. 530 mJ, , b. iˆ + ˆj, , iˆ + ˆj, 2, , t1 + t2, 2, , x = 3t − 4t 2 + t 3 , where x is in metres and t is in seconds., , 18. The unit vector along iˆ + ˆj is:, a. k̂, , a. t =, , H 2 + x2, xv, , 24. A uniform chain of length 2 m is kept on a table such that, a length of 60 cm hangs freely from the edge of the table., The total mass of the chain is 4 kg. What is the work done, in pulling the entire chain on the table?, a. 7.2 J, b. 3.6 J, c. 120 J, d. 1200 J, 25. The moment of inertia of a ring about one of its diameters, is I. What will be its moment of inertia about a tangent, parallel to the diameter?, 3, a. 4I, b. 2I, c. I, d. 3I, 2, 26. From a circular disc of radius R and mass 9M, a small disc, of radius R/3 is removed from the disc. The moment of, inertia of the remaining disc about an axis perpendicular, to the plane of the disc and passing through O is:, , H 2 + x2, , ( xv ), , R/3, , 2, , 20. A body is thrown vertically upwards form the top A of, tower. It reaches the ground in t1 second. If it is thrown, vertically downwards form A with the same speed it reaches, the ground in t2 second. If it is allowed to fall freely form, A, then the time it takes to reach the ground is given by:, , RR, , O, O, , a. 4MR 2, , b., , 40, MR 2, 9, , c. 10MR 2, , d., , 37, MR 2, 9

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11, , Mock Test-2, , 27. The displacement of a particle moving in S.H.M. at any, instant is given by y = a sin ωt . The acceleration after time, t=, , T, is (where, T is the time period):, 4, , a. aω, , b. −aω, , 34. A rod is fixed between two points at 20°C. The coefficient, of linear expansion of material of rod is 1 .1 × 10 −5 / °C, and Young's modulus is 1.2 × 1011 N / m . Find the stress, , c. aω 2, , d. − aω 2, , 28. The motion of a particle executing S.H.M. is given by, x = 0.01 sin 100π (t + . 05) , where x is in metres and time is, in seconds. The time period is:, a. 0.01 sec, b. 0.02 sec, c. 0.1 sec, b. 0.2 sec, , developed in the rod if temperature of rod becomes 10°C, , a. 1.32 × 107 N / m2, , b. 1.10 × 1015 N / m2, , c. 1.32 × 108 N / m2, , d. 1.10 × 106 N / m 2, , 35. A transverse wave is described by the equation, , N2 revolutions per year. If their average orbital radii be, , x, , y = y0 sin 2π  ft −  . The maximum particle velocity, λ, , , is equal to four times the wave velocity if:, a. λ = π y0 / 4, b. λ = π y0 / 2, , R1 and R2 respectively, then R1 / R2 is equal to:, , c. λ = π y0, , 29. Two planets revolve round the sun with frequencies N1 and, , a. ( N1 / N 2 )3 / 2, , b. ( N 2 / N1 )3 / 2, , c. ( N1 / N 2 ) 2 / 3, , d. ( N 2 / N1 ) 2 / 3, , 30. Acceleration due to gravity on moon is 1/6 of the, acceleration due to gravity on earth. If the ratio of, ,  ρe  5, =,  ρm  3, , densities of earth ( ρ e ) and moon ( ρm ) is , , d. λ = 2π y0, , 36. A police car moving at 22 m/s chases a motorcyclist. The, police man sounds his horn at 176 Hz, while both of them, move towards a stationary siren of frequency 165 Hz., Calculate the speed of the motorcycle. If it is given that, the motorcyclist does not observe any beats: (speed of, sound = 330 m/s), Police car, , Motorcycle, , 22 m/s, 176 Hz, , v, , then radius of moon Rm in terms of Re will be:, , a., , 5, Re, 18, , 3, c., Re, 18, , b., , 1, Re, 6, 1, , d., , 2 3, , Re, , 31. A cylinder is filled with liquid of density up to a height h., if the beaker is at rest the mean pressure at than walls is:, a. 0, b. hdg, c. hdg / 2, d. 2hdg, 32. A common hydrometer has a uniform stem graduated, downwards form 0, 1, 2,.. up to 10. When floating in pure, water it reads 0 and in a liquid of relative density 1.5 it, reads 10. What is the relative density of liquid in which it, reads 5?, a. 1.15, b. 1.20, c. 1.25, d. 1.30, 33. Steel and copper wires of same length are stretched by the, same weight one after the other. Young's modulus of steel, and copper are 2 × 1011 N / m2 and 1.2 × 1011 N / m2 . The, ratio of increase in length., 2, a., 5, , c., , 5, 4, , b., , 3, 5, , d., , 5, 2, , Stationary, siren, (165 Hz), , a. 33 m/s, c. Zero, , b. 22 m/s, d. 11 m/s, , 37. A pendulum clock keeps correct time at 0°C. Its mean, coefficient of linear expansions is α / °C , then the loss in, seconds per day by the clock if the temperature rises by, t°C is:, 1, α t × 864000, a. 2, αt, 1−, 2, , b., , 1, α t × 86400, c. 2, 2, α t, , 1 −, , 2 , , , 1, α t × 86400, d. 2, αt, 1+, 2, , 1, α t × 86400, 2, , 38. A beaker is completely filled with water at 4°C. It will, overflow if:, a. Heated above 4°C, b. Cooled below 4°C, c. Both heated and cooled above and below 4°C respectively, d. None of the above

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Physics, , 12, , 39. One mole of a monatomic ideal gas is mixed with one, mole of a diatomic ideal gas. The molar specific heat of, the mixture at constant volume is:, a. 8, , 9R, b., 4, , c. 2R, , Answers and Solutions, , d. 2.5 R, , 40. An air bubble doubles its radius on raising from the, bottom of water reservoir to be the surface of water in it., If the atmospheric pressure is equal to 10 m of water, the, height of water in the reservoir is:, , 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , d, , d, , c, , c, , a, , a, , d, , a, , b, , c, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , a, , d, , b, , a, , c, , b, , b, , c, , a, , c, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , b, , b, , a, , b, , d, , a, , a, , b, , d, , a, , 31., , 32., , 33., , 34., , 35., , 36., , 37., , 38., , 39., , 40., , b, , b, , c, , b, , c, , c, , b, , b, , a, , b, , 41., , 42., , 43., , 44., , 45., , a, , b, , b, , c, , c, , 1., a. 10 m, b. 20 m, c. 70 m, d. 80 m, 41. The displacement equation of a particle is x = 3sin 2t, +4 cos 2t . The amplitude and maximum velocity will be, respectively:, a. 5, 10, b. 3, 2, c. 4, 2, d. 3, 4, , 44. The lengths and radii of two rods made of same material, are in the ratios 1 : 2 and 2 : 3 respectively. If the, temperature difference between the ends for the two rods, be the same, then in the steady state, the amount of heat, flowing per second through them will be in the ratio:, a. 1: 3, b. 4 : 3, c. 8 : 9, d. 3 : 2, , 1 1 1, = +, f v u, , 0=−, , 1, 1, dv − 2 du, 2, v, u, 2, , ⇒, , v, dv = −   du, u, , . . . (ii), , v, f, =, u u− f, , Also from equation (i), , 2, ,  f , we get dv = − ,  .l, u− f , 2, ,  f , Therefore, size of image is ,  l., u− f , , 2., , (d) Apparent distance of fish from lens, , u = 0.2 +, From, , ⇒, , h, , µ, , = 0.2 +, , 0.4, = 0.5 m, 4/3, , 1 1 1, = −, f v u, , 1, 1, 1, = −, (+3) v (− 0.5), v = − 0.6 m, The image of the fish is still where the fish is 0.4 m below, the water surface., , (c) Using a sin θ = nλ, , source occurs at a wavelength of 11× 10 −5 cm. According, , 3., , to Wien's law, the temperature of the source (on Kelvin, scale) will be n times the temperature of another source, (on Kelvin scale) for which the wavelength at maximum, , or, , a., , or, , D=, , ⇒, , 3 ×10−4 × 4 ×10−3, m = 2.0m, 1× 6000 ×10−10, , a. 2, , b. 4, , c. 1, , 2, , d. 1, , . . . (iii), , From equation (ii) and (iii), , 45. The maximum energy in the thermal radiation from a hot, , energy is 5.5 ×10−5 cm. The value of n is:, , . . . (i), , Differentiating equation (i), we obtain, , 42. 2 kg of ice at -20°C is mixed with 5 kg of water at 20°C in, an insulating vessel having a negligible heat capacity., Calculate the final mass of water remaining in the, container. It is given that the specific heats of water and, ice are 1 kcal/kg/°C and 0.5 kcal/kg/°C while, the latent, heat of fusion of ice is 80 kcal/kg., a. 7 kg, b. 6 kg, c. 4 kg, d. 2 kg, 43. If the radius and length of a copper rod are both doubled,, the rate of flow of heat along the rod increases:, a. 4 times, b. 2 times, c. 8 times, d. 16 times, , (d) From mirror formula, , 10., , x, D, = nλ or a = nλ ., D, x, a.x, nλ

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13, , Mock Test-2, , 4., , (c) Frequency of Em waves going towards the approaching, , c +υ, .w0, c, Frequency of waves reflected from mirror and movi9ng, , mirror, w'=, , towards source, w " =, or, , or, , 6., , (a) Here;, , λ=, , λ, , 13. (b) As ν =, , υ,  w0 where β =, c, , , = 3 ×10 π ., 6, , ; also λinfrared > λvisible so Einfrared < Evisible, , 7., , (d) E ∝, , 8., , (a) The stopping potential for curves a and b is same., , ∴, , f a = fb, Also saturation current is proportional to intensity, , ∴, 9., , ⇒ νm =, , c, , λm, , λm > λs, , ⇒, , νm <ν s, , and ν s =, , λ, , and ν s =, , Q, , Also ν m =, , c, , 2π, , ( e / m )electron, ( e / m )Hydrogen, , =, , M Hydrogen, M electron, , =, , 1840, 1, , −, , 10. (c) Energy to excite the e from n = 1 to n = 2, E = −3.4 − (−13.6) = 10.2 eV = 10.2 × 1.6 × 10 −19, = 1.632 × 10 −18 J, First excited state, , n = 2 (– 3.4 eV), , 11. (a), , Z, , n = 1 (–13.6 eV), , 9α ,, 5β, A− 36, X A , → Z −18 X A−36 →, Z −13 X, , Number of protons = (Z = 13), , λs, , 1, 2π Ls C, , ⇒, , Ls, νm, =, Lm, νs, , ⇒, , Ls < Lm., , 14. (a) I Carrier =, , 15. (c) R = ρ, , I rms, 2, a, , m, 1+, 2, , =, , 11, (0.5) 2, 1+, 2, , = 10.35 A, , L, RA, ⇒ρ=, = ohm × cm, A, L, , 16. (b) 1 yard = 36 inches = 36 × 2.54 cm = 0.9144m ., 17. (b) A (1, a, b); B (a, 2, b); C (a, b, 3), , AB = ( a − 1) iˆ + ( 2 − a ) ˆj + 0kˆ, uuur, = λ BC = λ (0iˆ + (b − 2) ˆj + (3 − 2) kˆ ), where λ ≠ 0, Hence a − 1 = 0, , Ground state, (For H2 - atom), , c, , 1, Lm C, , I a < Ib, (b), , 3, , 8, , l 0.024, (a) The coherence time, t = =, == 8×10–11s., 8, c 3 ×10, λ, , ⇒, , 1,  1  2.7  1 , N = 1×   =   =, 8, 2, 2, , 1, , 2, = 0.666 ×10−6 = 666 ×10−9 m ., 3 ×106, , 1, , 8.1, , t / T1 / 2, , ⇒ N = mg = 0.125 mg, ,  υ, 1 + , , ⇒  c  w0 =  1 + β,  υ, 1− β, 1 − , c, , , , 5., , ( Z − 13), P, =, N ( A − Z − 23), n, ,  υ, c 1 + , c, w" = , w0,  υ, c 1 − ,  c, , 2π, , ∴, , 1, 1, 12. (d) N = N 0   ⇒ N = N 0  , 2, 2, , c, .w ', c −υ, , c, c +υ,  c +υ , x, .w0 = ,  w0, c −υ, c,  c −υ , , w" =, , Number of neutrons = (A – 36) – (Z – 13) = (A – Z – 23), , ⇒ a =1, , 2 − a = λ (b − 2), , And 3 − b = 0, , . . .(ii), ⇒ b=3, , With a = 1 and b = 3, λ = 1, Hence a + b = 4, , . . .(i), , . . .(iii)

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Physics, , 14, , r, iˆ + ˆj, R, =, 18. (c) R̂ =, |R|, 12 + 12, =, , F, , 1 ˆ 1 ˆ, i+, j, 2, 2, , vx = 3m/s, , ux = 0, O, , 19. (a) Here, L = H + x, 2, , 2, , E, , Force along OF (perpendicular to OE) = 4 N, , or L2 = H 2 + x 2, , ∴, , Differentiating,, , But, , F = 4N, , ay =, , F 4, = = 2 m/ s2, m 2, , Displacement of body in 4 sec along OF, ,  dL ,  dx , 2L   = 0 + 2x  ,  dt ,  dt , , ⇒, , s y = uy t +, , dL, is velocity of the mass, dt, , ∴, , Net displacement s = s x2 + s y2 = (12) 2 + (16) 2 = 20 m, ,  dx , and   is velocity of motorcycle.,  dt , ∴, , Lυ m = xυ, , or, , υm =, , xυ, =, L, , xυ, H +x, 2, , v0 = 3 m / s and v4 = 19 m/s, W=, , 2, , 20. (c) Suppose the body e projected vertically upwards form, A with a speed x. Using equation s = ut + (1/ 2 ) at 2 ., , h = − xt1 + (1/ 2 ) gt12, , . . .(i), , For the second case, h = xt2 + (1/ 2 ) gt, , dx, = 3 − 8 t + 3t 2, dt, , 23. (a) v =, ∴, , 2, 2, , . . .(ii), , 1, 1, ay t 2 = × 2 × (4)2 = 16 m [As uy = 0 ], 2, 2, , =, , 1, m(v42 − v02 ) (According to work energy theorem), 2, , 1, × 0.03 × (19 2 − 3 2 ) = 5.28 J, 2, , 24. (b) Fraction of length of the chain hanging from the table, =, , 1, 60 cm, 3, 10, ⇒ n=, =, =, n 200 cm 10, 3, , Subtracting eq. (1) from eq. (2),, 0 = x ( t2 + t1 ) + (1/ 2 ) g ( t22 + t12 ), , or, , x = (1/ 2 ) g ( t1 + t2 ), , L/n, , . . .(iii), Work done in pulling the chain on the table:, , Subtracting for x in eq. (2),, , h = (1/ 2 ) g ( t1 − t2 ) t2 + (1/ 2 ) gt = (1/ 2) gt1t2, 2, 2, , . . .(iv), , If the body falls freely for t second, u = 0, , ∴, , h = 0 × t + (1/ 2 ) gt 2, , or, , h = (1/ 2 ) gt 2, , mgL, 2n, , 25. (d) I =, . . .(v), , Combining eq. (4) and eq. (5), we get, , 1 2 1, gt = gt1t2, 2, 2, or, , W=, , t = t1t2, , 2, , =, , 4 × 10 × 2, = 3. 6 J, 2 × (10/3)2, , 1, MR 2, 2, , 26. (a) I remaining = I whole − I removed, or I =, ,  1  R  2 1  2 R 2 , 1, 2, 9, M, R, −, ( )( )  m   + m    . . . (i), 2,  2  3  2  3  , 2, , 9M, R, ×π   = M, 2, πR, 3, Substituting in equation (i),, , Here, m =, , 21. (b) When a sudden jerk is given to C, an impulsive, tension exceeding the breaking tension develops in C first,, which breaks before this impulse can reach A as a wave, through block., 22. (b) Displacement of body in 4 sec along OE, , s x = vx t = 3 × 4 = 12 m, , we have I = 4MR2, , 27. (a) Maximum acceleration = aω 2 = a × 4π 2n 2, = 0.01 × 4 × (π )2 × (60)2 = 144π 2m / sec

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15, , Mock Test-2, , 28. (b) ω =, , 2π, = 100π ⇒ T = 0.02 sec, T, , 36. (b) The motorcyclist observes no beats. So, the apparent, frequency observed by him from the two sources must be, equal., f1 = f 2, , 29. (d) According to Kepler's law T 2 ∝ R 3, If N is the frequency then N 2 ∝ ( R ) −3, or, , N2  R2 , = , N1  R1 , , −3/ 2, , ⇒, , R1  N2 , =, , R2  N1 , ,  330 − v ,  330 + v , 176 ,  = 165 , ,  330 − 22 ,  330 , Solving this equation, we get v = 22 m/s, , 2/ 3, , 37. (b) Loss in time per second, , 4, 30. (a) g = π G ρ R, 3, , ⇒ g ∝ ρR⇒, ⇒, , ∆T 1, 1, = α∆θ = α (t − 0), T, 2, 2, , ge, ρ, R, = e × e, g m ρm Rm, , ⇒, , Loss in time per day, , 1, 1, 1 , ∆t =  α t  t = α t × (24 × 60 × 60) = α t × 86400, 2, 2, 2 , , 6 5 Re, 5, = ×, ⇒ Rm = Re, 1 3 Rm, 18, , 38. (c) Water has maximum density at 4° C, so if the water is, heated above 4° C or cooled below 4° C density decreases, i.e. volume increases. In other words, it expands so it, overflows in both the cases., , 31. (c) Mean pressure at walls, hdg, 0+h, =,  dg =, 2,  2 , , ∴, , Mg = (V + V ′)σ w, , . . .(i), , Mg = V (1.5σ w ), , . . .(ii), , (V + V ′)σ w = 1.54 Vσ w V ′ = 0.5, , . . .(iii), , V′, 0.5 V , , , Again Mg =  V +  σ l =  V +, σ l, 2, 5 , , , From (ii) 1.5 V σ w = (1.25V ) σ l, , 33., , ls 1.2 × 1011 3, =, =, lcu, 2 × 1011, 5, , 4°C, , CV =, , n1 Cv1 + n2 Cv2, n1 + n2, , 1×, CV =, , 3, 5, R + 3× R, 2, 2, 1+ 3, , 9R, 4, 40. (c) According to Boyle’s law: ( PV, 1 1 ) bottom = ( PV, 2 2 ) top, CV =, , (a) Thermal stress, , = 1.2 × 1011 ×1.1× 10 −5 × (20 − 10) = 1.32 ×107 N /m 2, , ∴, , coefficient of t, 2π f, =, =λf, coefficient of x 2 x / λ, , Maximum particle velocity vpm = ωA = 2π fy0, , (10 + h)r13 = 10 × 8r13 ⇒ 10 + h = 80, , ∴ h = 70m, 41. (a) x = 3 sin 2t + 4 cos 2t., From given equation, π, a1 = 3, a 2 = 4, and φ =, 2, , Given, vpm = 4v, , ∴, , a = a12 + a 22 = 3 2 + 4 2 = 5, , 2π fy0 = 4λ f, , ⇒, , v max = aω = 5 × 2 = 10, , λ=, , π y0, 2, , Temp., , (b) Let CV = specific heat of the mixture, , 4, 4, (10 + h) × π r13 = 10 × π r23, 3, 3, But r2 = 2 r1, , v=, , ∴, , 39., , σ l 1.5, =, = 1.2, σ w 1.25, , 35. (b) Wave velocity, , or, , 0°C, , . . .(iv), , FL, l, Y, (b) l =, ⇒ S = cu (F,L and Y are constant), AY, lcu YS, ∴, , 34., , Density, , 32. (b) Let V be volume of hydrometer below neck and V ′, the volume of neck, then, , 42. (b) Heat released by 5 kg of water when its temperature, falls from 20°C to 0°C is,

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Physics, , 16, , Q1 = mc∆θ = ( 5) (10, , 3, , ) ( 20 − 0) = 10, , 5, , cal, , When 2 kg of ice at -20°C comes to a temperature of 0°C,, it takes energy”:, , Q2 = mc∆θ = ( 2)( 500 )( 20) = 0.2 ×105 cal, , ⇒, , 44. (c), , Q 0.8 × 105, =, = 1 kg, L 80 × 103, So, the temperature of the mixture will be 0°C, mass of, water in it is 5 + 1 = 6 kg and mass of ice is 2 – 1 = 1 kg., , Where, m =, , 43. (b) Q ∝, , Q2 r22 l1, A r2, ⇒, ∝, =, ×, l, l, Q1 r12 l 2, , Q KA(θ1 − θ 2 ), Q, A r2, =, ⇒, ∝, ∝, t, l, t, l, l, , [As (θ 1 − θ 2 ) and K are constants], , The remaining heat Q = Q1 − Q2 = 0.8 × 105 cal will melt a, mass m of the ice,, , Q2 4 1, = × ⇒ Q2 = 2Q1, Q1 1 2, , ⇒, , Q,  , 2,  t 1 r1 l2 4 2 8, = 2× = × =, Q, r2 l1 9 1 9,  ,  t 2, , 45. (c), , T1 λm2 5.5 × 105 1, =, =, =, T2 λm1, 2, 11× 105, , ⇒, , 1, ., 2, , n=

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17, , Mock Test-3, , Mock Test-3, 1., , 8., , Which of the following is not a unit of energy?, a. W -s, b. kg -m / sec, , which displaces it from its origin to the point r = (2iˆ − 1 ˆj ), , c. N -m, 2., , d. Joule, r, r, r r, r, r, Let r = a + λ l and r = b + µ m be two lines in space, , r, , r, and m = 2iˆ − 5 ˆj − 7kˆ then, the p.v. of a point which lies on, both of these lines, is:, a. iˆ + 2 ˆj + kˆ, b. 2iˆ + ˆj + kˆ, c. iˆ + ˆj + 2kˆ, d. non existent as the lines are skew, r, r r r, r, r, If a + b + c = 0, a = 3 , b = 5 , c = 7 , then the angle, r, , r, , between a & b is:, , 2π, 5π, π, c., d., 6, 3, 3, 3, For three particles A, B and C moving along x-axis x − t, graphs are as shown in the figure. Mark out the correct, relationship between their average velocities between the, points P and Q:, a., , 4., , 5., , π, , b., , a. υaυ , A > υav, B = υav, C, , b. υ aυ , A = υ aυ , B = υaυ , C, , c. υ aυ , A > υaυ , B > υaυ , C, , d. υaυ , A < υaυ , B < υaυ , C, , The relation between time t and distance x is,, , t = α x 2 + β x , where α and, , β, , are, , constants., , The, , a. 2αυ, , b. 2βυ, , c. 2αβυ 3, 6., , 3, , then the height at which the K.E. of the body becomes, half its original value is given by:, a. 50 m, b. 12.5 m, c. 25 m, d. 10 m, 10. A cylinder rolls up an inclined plane, reaches some height, and then rolls down (without slipping throughout these, motions). The directions of the frictional force acting on, the cylinder are:, a. up the incline while ascending and down the incline, while descending, b. up the incline while ascending as well as descending, c. down the incline while ascending and up the incline, while descending, d. down the incline while ascending as well as descending, 11. A child is standing with folded hands at the centre of a, platform rotating about its central axis. The kinetic energy, of the system is K. The child now stretches his arms so, that the moment of inertia of the system doubles. The, kinetic energy of the system now is:, a. 2K, b. K / 2, c. K / 4, d. 4K, , amplitude is:, , a. 1 cm, , a., , In an elevator moving vertically up with an acceleration g,, the force exerted on the floor by a passenger of mass M is:, a. Mg, , b., , 1, Mg, 2, , c. Zero, , c. 2 cm, , d. 2.5 cm, ,  πt, , + φ  where, 2 is in cm?, 2, , , π, 2, , 7., , 2 cm, , 13. What is the maximum acceleration of the particle doing, , 2, , d. −0.3 m /sec, , c. 0.3m /sec, , b., , the SHM y = 2 sin , , 2, , b. −3m /sec, 2, , 490 joules. If the acceleration due to gravity is 9.8 m / s 2 ,, , The angular frequency of the particle is π rad / s , then its, , An object with a mass 10 kg moves at a constant velocity, of 10 m/sec. A constant force then acts for 4 second on the, object and gives it a speed of 2 m/sec in opposite, direction. The acceleration produced in it, is, 2, , A body of mass 2 kg is thrown up vertically with K.E. of, , of the particle is 1 cm and its initial velocity is π cm/s ., , d. 2β 3υ 3, , a. 3m /sec, , 9., , 12. A particle in S.H.M. is described by the displacement, function, x(t) = a cos(ωt + θ ) . If the initial (t = 0) position, , retardation is:, 3, , metres. The work done on the particle is:, a. –7 joules, b. +13 joules, c. +7 joules, d. +11 joules, , r, , r, where a = 5iˆ + ˆj + 2kˆ , b = −iˆ + 7 ˆj + 8kˆ , l = −4iˆ + ˆj − kˆ, , 3., , A force F = (5iˆ + 3 ˆj ) newton is applied over a particle, , d. 2 Mg, , cm / s 2, , b., , π2, 2, , cm / s 2 c., , π, 4, , cm / s 2, , d., , π, 4, , cm / s 2, , 14. If radius of earth is R then the height ‘h’ at which value of ‘g’, becomes one-fourth is:, a., , R, 4, , b., , 3R, 4, , c. R, , d., , R, 8

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Physics, , 18, , 1, of the earth but the, 81, , 15. The mass of the moon is, gravitational pull is, , 1, of the earth. It is due to the fact that:, 6, , 81, a. The radius of the moon is, of the earth, 6, b. The radius of the earth is, , 9, , of the moon, , 6, c. Moon is the satellite of the earth, d. None of the above, , 16. A suction pump at ground level can draw water from a, well whose depth of level is:, a. more than 40 cm, b. less than 34 cm, c. less than 10.2 cm, d. about 105 m, 17. How much lead of specific gravity 11 should be added to, a piece of cork of specific gravity 0.2 weighing 10 g so, that it may just float on water?, a. 4.4 g, b. 44 g, c. 440 g, d. 2.2 g, 18. If the temperature increases, the modulus of elasticity:, a. Decreases, b. Increases, c. Remains constant, d. Becomes zero, 19. The coefficient of linear expansion of brass and steel are, α 1 and α 2 . If we take a brass rod of length l 1 and steel, rod of length l 2 at 0°C, their difference in length (l 2 − l 1 ), will remain the same at a temperature if:, , a. α 1 l 2 = α 2 l1, , b. α 1 l 22 = α 2 l 12, , c. α 12 l 1 = α 22 l 2, , d. α 1 l 1 = α 2 l 2, , 23. If a cylinder of diameter 1.0 cm at 30°C is to be solid into, a hole of diameter 0.9997 cm in a steel plate at the same, temperature, then minimum required rise in the, temperature of the plate is:, (Coefficient of linear expansion of steel = 12 × 10−6 / °C ), a. 25°C, b. 35°C, c. 45°C, d. 55°C, , 24. Suppose ideal gas equation follows VP = constant. Initial, temperature and volume of the gas are T and V, respectively. If gas expand to 27V then its temperature, will be come:, a. T, b. 9T, c. 27 T, d. T / 9, 3, , 25. The volume of a gas at pressure 21 × 10 4 N / m2 and, temperature 27°C is 83 litres. If R = 8.3 J/mol/K, then, the quantity of gas in gm-mole will be:, a. 15, b. 42, c. 7, d. 14, , 26. An ideal monatomic gas is taken round the cycle ABCDA, as shown in the p-V diagram (see figure). The work done, during the cycle is:, a. p V, , b. 2 pV, , c., , 1, pV, 2, , d. zero, , 27. Water of volume 2 L in a container is heated with a coil of, 1 kW at 27°C. The lid of the container is open and energy, dissipates at rate of 160 J/s. In how much time, temperature will rise from 27°C to 77°C?, [Specific heat of water is 4.2 kJ/kg], a. 8 min 20 s, b. 6 min 2 s, c. 7 min, d. 14 min, , 20. An organ pipe P1 closed at one end vibrating in its first, , 28. Wires A and B have identical lengths and have circular, cross-sections. The radius of A is twice the radius of B i.e., , harmonic and another pipe P2 open at both ends vibrating, , rA = 2rB . For a given temperature difference between the, , in its third harmonic are in resonance with a given tuning, fork. The ratio of the length of P1 and P2 is:, , two ends, both wires conduct heat at the same rate. The, relation between the thermal conductivities is given by:, , a. 8 / 3, , a. K A = 4 K B, , b. K A = 2 K B, , c. K A = K B / 2, , d. K A = K B / 4, , b. 3 / 8, , c. 1 / 6, , d. 1 / 3, , 21. Two vibrating strings of the same material but of lengths, L and 2L have radii 2r and r respectively. They are, stretched under the same tension. Both the string vibrates, in their fundamental modes. The one of length L with, frequency v1 and the other with frequency v2 . The ration, , v1 / v2 is given by., a. 2, b. 4, c. 8, d. 1, 22. Thermoelectric thermometer is based on, a. Photoelectric effect, b. Seebeck effect, c. Compton effect, d. Joule effect, , 29. Which of the following statement is correct?, a. A good absorber is a bad emitter, b. Every body absorbs and emits radiations at every, temperature, c. The energy of radiations emitted from a black body is, same for all wavelengths, d. The law showing the relation of temperatures with the, wavelength of maximum emission from an ideal black, body is Plank’s law

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19, , Mock Test-3, , 30. A total charge Q is broken in two parts Q1 and Q2 and, they are placed at a distance R from each other. The, maximum force of repulsion between them will occur,, when:, Q, Q, Q, 2Q, a. Q2 = , Q1 = Q −, b. Q2 = , Q1 = Q −, R, R, 4, 3, Q, 3Q, Q, Q, c. Q2 = , Q1 =, d. Q1 = , Q2 =, 4, 4, 2, 2, , 31. Two point charges +3µC and +8µC repel each other, with a force of 40N . If a charge of −5µC is added to, each of them, then the force between them will become:, a. −10 N, b. +10 N, c. +20 N, d. −20 N, , 32. A condenser of capacity 50 µ F is charged to 10 volts. Its, energy is equal to:, −3, , a. 2.5 ×10, , −4, , b. 2.5 ×10, , joule, , −2, c. 5 ×10 joule, , −8, , d. 1.2 ×10, , joule, joule, , 33. Force of attraction between the plates of a parallel plate, capacitor is:, a., , q2, 2ε 0 AK, , b., , q2, ε 0 AK, , c., , q, 2ε 0 A, , d., , a. Equator, c. A latitude of 60o, , b. Magnetic poles, d. An altitude of 60o, , 38. A charge ‘q’ coulomb moves in a circle at n revolutions, per second and the radius of the circle is r metre. Then, magnetic field at the centre of the circle is:, a., , 2π q, ×10−7 N/amp/metre, nr, , c., , 2π nq, 2π q, N/amp/metre, × 10 −7 N/amp/metre d., r, r, , b., , 2π q, × 10 −7 N/amp/metre, r, , 39. An arc of a circle of radius R subtends an angle, , π, , at the, 2, centre. It carries a current i. The magnetic field at the, centre will be:, , a., , µ0i, , c., , µ 0i, , b., , 2R, , d., , 4R, , µ0i, 8R, 2 µ 0i, 5R, , 40. A metallic ring is attached with the wall of a room. When, the north pole of a magnet is brought near to it, the, induced current in the ring will be:, , q2, , S, , 2ε 0 A K, 2, , a, , N, , 34. The resistivity of iron is 1×10−7 ohm − m. The resistance, of a iron wire of particular length and thickness is 1 ohm., If the length and the diameter of wire both are doubled,, then, the resistivity in ohm − m will be:, , a. 1×10−7, , b. 2 × 10−7, , c. 4 × 10−7, , d. 8 × 10−7, , 35. A metallic block has no potential difference applied across, it, then the mean velocity of free electrons is:, ( T = absolute temperature of the block), a. Proportional to T, b. Proportional to T, c. Zero, d. Finite but independent of temperature, 36. Two small bar magnets are placed in a line with like poles, facing each other at a certain distance d apart. If the length, of each magnet is negligible as compared to d, the force, between them will be inversely proportional to:, , 1, c. 2, d. d 4, d, 37. Earth's magnetic field always has a horizontal component, except at or horizontal component of earth's magnetic, field remains zero at:, a. d, , b. d 2, , a. First clockwise then anticlockwise, b. In clockwise direction, c. In anticlockwise direction, d. First anticlockwise then clockwise, 41. A coil of area 100cm2 has 500 turns. Magnetic field of, 0.1 weber / metre 2 is perpendicular to the coil. The field, , is reduced to zero in 0.1 second. The induced e.m.f. in the, coil is:, a. 1 V, b. 5 V, c. 50 V, d. Zero, , 42. The resistance of a coil for DC is in ohms. In AC, the, resistance:, a. Will remain same, b. Will increase, c. Will decrease, d. Will be zero, 43. The peak value of an alternating e.m.f. E is given by, , E = E0 cos ωt is 10 volts and its frequency is 50 Hz. At, time, t =, , a. 10 V, , 1, sec , the instantaneous e.m.f. is:, 600, , b. 5 3V, , c. 5 V, , d. 1 V

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Physics, , 20, , 44. In an astronomical telescope in normal adjustment, a, straight black line of length L is drawn on the objective, lens. The eyepiece forms a real image of this line. The, length of this image is l. The magnification of the, telescope is:, a., , L, l, , b., , L, +1, l, , c., , L, −1, l, , d., , L+l, L−l, , 45. The diameter of the eye-ball of a normal eye is about 2.5, cm. The power of the eye lens varies from, a. 2 D to 10 D, b. 40 D to 32 D, c. 9 D to 8 D, d. 44 D to 40 D, Answers and Solutions, , 6., , r r, r v − v (−2) − (+10) −12, =, = −3 m / s 2, (b) a = 2 1 =, t, 4, 4, , 7., , (a) F = ma =, , 8., , (c) W = F.s = (5ˆi + 3ˆj ).(2ˆi − ˆj ) = 10 – 3 = 7 J, , 9., , (b) Let h is that height at which the kinetic energy of the, body becomes half its original value i.e., half of its kinetic, energy will convert into potential energy., , ∴, , mgh =, , ⇒, , 2 × 9. 8 × h =, , h = 12.5m., , 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , ⇒, , b, , a, , d, , b, , a, , b, , a, , c, , b, , b, , 10. (b), , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , b, , b, , b, , c, , b, , c, , b, , a, , d, , c, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , d, , b, , a, , c, , c, , a, , a, , d, , d, , d, , 31., , 32., , 33., , 34., , 35., , 36., , 37., , 38., , 39., , 40., , a, , a, , a, , a, , b, , d, , b, , c, , b, , c, , 41., , 42., , 43., , 44., , 45., , c, , b, , b, , a, , d, , 1., , (b) Kg-m/sec is the unit of linear momentum, , 2., , (a) λ = µ = 1, , 3., , r r, r, r2 r2, r r r2, (d) a + b = −c Square a + b + 2 a.b = c, , ∴, , r2 r2 r2, c −a −b, cosθ =, r r, 2a b, , m∆v 0.2 × 20, =, = 40 N, ∆t, 0.1, , 490, 2, 490, 2, , mg sin θ component is always down the plane, , whether it is rolling up or rolling down. Therefore, for no, slipping, sense of angular acceleration should also be, same in both the cases. Therefore, force of friction f, always acts upwards., , 11. (b), , From, , (I ω, , conservation, , of, , angular, , momentum, , = constant ) , angular velocity will remain half. As,, , 1, = I ω2, 2, The rotational kinetic energy will become half. Hence, the, correct option is (b)., K=, , 12. (b) x = a cos(ωt + θ ), and v =, , . . .(i), , dx, = −aω sin(ω t + θ ), dt, , . . .(ii), , Given at t = 0 , x = 1 cm and v = π and ω = π, Putting these values in equation (i) and (ii) we will get, , 4., , 5., , displacement, (b) We have υ aυ =, = slope of chord on x − t, time interval, graph., Here, slope of chord between P and Q for all three, particles is same, so average velocity of all the three, particles would be same., (a) t = α x 2 + β x = x (α x + β ), , dx, dx, ⋅x+β, dt, dt, dx, 1, υ= =, dt β + 2α x, 1 = 2α, , ∴, , −2αυ, dυ, =, = −2αυ 3, dt ( β + 2α x ) 2, , sin θ =, , −1, 1, and cos θ =, a, a, 2, , ⇒, ,  1 1, sin 2 θ + cos 2 θ =  −  +  ,  a a, , ⇒, , a = 2 cm, , 2, , 13. (b) Comparing given equation with standard equation,, π, y = a sin(ωt + φ ), we get, a = 2 cm, ω =, 2, , 2, , ∴, , 2, , π, π , 2,  × 2 = 2 cm / s . ., 2,  , , Amax = ω 2 A = , , 2, , g,  R , 14. (c) g ' = g , = . By solving h = R, , 4,  R+h

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21, , Mock Test-3, , 15. (b) Gravitational pull depends upon the acceleration due, to gravity on that planet., , Mm =, , g=, ∴, , 1, 1, M e , gm = ge, 81, 6, , GM, R2, , Re =, , 9, 6, , 23. (a) α =, 1/ 2, , M, R, g , ⇒ e = e × m , Rm  M m ge , , 1/ 2, , 1, , =  81× , 6, , , Rm, , ∆P, 105 N/m3, h=, =, ≈ 10.2 m, dg (103 kg/m3 ) ( 9.8), ,  m 10 , m1 + 10 =  1 +,  ×1,  11 0.2 , , ⇒, , m1 = 44 g, , 24. (c) For same isotherm; T → constant, 1, ∴, ⇒ PV, P∝, 1 1 = PV, 2 2, V, , 26. (a) Work done in a cyclic process = area between the, cyclic, , Note: If cycle is clockwise (p on y-axis and V on x-axis), work done is positive and if it is anticlockwise work done, is negative., , 18. (a) Because due to increase in temperature intermolecular, forces decreases., 19., , (d) L2 = l2 (1 + α 2 ∆θ ) and L1 = l1 (1 + α1∆θ ), , ⇒, , ( L2 − L1 ) = ( l2 − l1 ) + ∆θ ( l2α 2 − l1α1 ), , 27. (a) Energy gained by water (in 1 s) = energy supplied –, energy lost, = 1000 J – 160 J = 840 J, Total heat required to raise the temperature of water from, 27°C to 77°C is ms∆θ ., Hence, the required time, , t=, , Now ( L2 − L1 ) = ( l2 − l1 ), so,, , l 2α 2 − l1α 1 = 0, , =, , 20. (c) First harmonic of closed = Third harmonic of open, , ∴, , l1 1,  v , v, = 3, ⇒ =, l, 6, 4l2, 2, l, 2,  2, , 840, ∴ Correct answer is (a)., , = 500s = 8 min 20 s, , 2, , 1 T, (with, 2l µ, , both the ends fixed)., Fundamental frequency v ∝ =, , 1, l µ, , (for same tension in, , both strings), Where, µ = mass per unit length of wire, , (, , = ρ .A ( ρ = density) = ρ π r, , or, , ms∆θ, rate by which energy is gained by water, , ( 2) ( 4.2 ×103 ) ( 50), , 28. (d), , 21. (d) Fundamental frequency is given by v =, , ∴, , PV 21× 10 4 × 83 × 10 −3, =, =7, RT, 8.3 × 300, , = AB × BC = ( 2 p − p ) × ( 2V − V ) = pV, , 17. (b) m1 g + m2 g = (V1 + V2 ) σ w g, ⇒, , ∆L, (1 − 0.9997), =, = 25°C, L0 ∆θ 0.9997 × 12 × 10−6, , 25. (c) PV = µ RT ⇒ µ =, , 16. (c) ∆P = hdg and ( ∆P )max = 1atm = 105 N/m3, ⇒, , 22. (b) Thermoelectric thermometer is based on Seebeck, Effect., , 2, , ), , µ ∝r, , ∴, , 1, v∝, rl, , ∴, , v1  r2   l2   r   2 L , =    =  ,  =1, v2  r1   l1   2r   L , , K, A r  1, K, Q KA∆θ, =, ⇒ A = B =  B  = ⇒ KA = B, t, l, K B AA  rB  4, 4, , 29. (d) A good absorber is a good emitter hence option (a) is, wrong. Everybody stops absorbing and emitting radiation, at 0 K hence, option (b) is wrong., The energy of radiation emitted from a black body is not, same for all wavelengths hence option (c) is wrong., Plank’s law relates the wavelength (λ) and temperature, (T). According to the relation Eλ dλ =, , 8π hc, , λ5, , 1, dλ ., [ehc / kT − 1], , Hence, option (d) is correct., , 30. (d) Q1 + Q2 = Q, , . . . (i ), , Q1Q2, r2, , . . . (ii), , and F = k, , From (i) and (ii) F =, , kQ1 (Q − Q1 ), r2

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Physics, , 22, , For F to be maximum, , dF, =0, dQ1, , Q, 2, 31. (a) In second case, charges will be − 2µC and +3µC, , ⇒, , Q1 = Q2 =, , QQ, F, Since, F ∝ Q1Q2 i.e., = 1 2, F ′ Q '1 Q '2, , ∴, ⇒, , 40 3 × 8, =, = −4, F ′ −2 × 3, F ′ = 10 N (Attractive), , 32. (a) U =, , 1, 1, CV 2 = × 50 × 10−6 × (10) 2 = 2.5 × 10−3 J, 2, 2, , 39. (b) B =, , 40. (c) As it is seen from the magnet side induced current will, be anticlockwise., 41. (c) When frequency is high, the galvanometer will not, show deflection., 42. (b) The coil having inductance L besides the resistance R., Hence for ac its effective resistance, , (where,, ,  q , σ, q2, = q, =, 2ε 0 K,  2 AK ε 0  2 AK ε 0, , σ, 2ε 0 K, , is the electric field produced by one plate, , 43. (b) E = E0 cos ωt = E0 cos, = 10 cos, , Now,, , 34. (a) Resistivity of some material is its intrinsic property, and is constant at particular temperature. Resistivity does, not depend upon shape., , 36. (d) F =, , µ0  6MM ′ , in end-on position., 4π  d 4 , , 37. (b) At magnetic poles, the angle of dip is 90o. Hence the, horizontal component BH = B cos θ = 0., 38. (c) The magnetic field at the centre of the circle, , =, , µo, 4π, , ×, , 2π i, 2π (nq) 2π nq, = 10−7 ×, =, × 10−7 N / A-m, r, r, r, , 2π × 50 × 1, π, = 10 cos = 5 3 volt., 600, 6, , 1, 1, 1, −, =, v −( f o + fe ) fe, , Solving we get v =, Magnification =, ∴, , 3KT, ⇒ Vrms ∝ T, m, , Vrms =, , 2πt, T, , 44. (a) Here we treat the line on the objective as the object, and the eyepiece as the lens., Hence, u = −( f o + f e ) and f = f e, , at the location of other)., , 35. (b) In the absence of external electric field mean velocity, of free electron (Vrms) is given by:, , R2 + X L2 will be, , larger than its resistance R for DC., , 33. (a) Force on one plate due to another is:, , F = qE = q ×, , µ 0 θ i µ 0 π i µ0i, =, × × =, 4π r, 4π 2 R 8 R, , ( fo + fe ) fe, fo, , v, f, Image size l, = e =, =, u, f o Object size L, , Magnification of telescope in normal adjustment, , =, , fo L, =, fe l, , 45. (d) An eye sees distant objects with full relaxation, 1, 1, 1, 1, 1, −, = or P = =, So, = 40 D, −2, 2.5 ×10, −∞ f, f 25 × 10−2, , So, or, , An eye sees an object at 25 cm with strain, 1, 1, 1, −, =, 2.5 ×10−2 −25 ×10−2 f, , P=, , 1, = 40 + 4 = 44 D, f

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23, , Mock Test-4, , Mock Test-4, 1., , 2., , 3., , In Young's double slit experiment the light emitted from, source has 1 = 6.5 × 10−7 m and the distance between the, two slits is 1 mm. Distance between the screen and slit is, 1 metre. Distance between third dark and fifth birth fringe, will be:, a. 3.2 mm, b. 1.63 mm, c. 0.585 mm, d. 2.31 mm, A radar operates at wavelength 50.0 cm. If the beat, frequency between the transmitted signal and the signal, reflected from aircraft ( ∆v ) is 1 kHz, then velocity of, the aircraft will be:, a. 800 km/hr, b. 900 km/hr, c. 1000 km/hr, d. 1032 km/hr, Find the values of magnetic field between plates of, capacitor at distance 1 m from centre where electric field, varies by 1010 volt / m/s., a. 5.56 ×10−8 T, c. 5.56µ T, , 4., , In the question no.18, the energy density at a distance 4 m, from the source will be (in joules /m3):, a. 1.33 ×10−6, , 5., , 6., , 7., , 8., , b. 5.56 ×10−3 T, d. 5.56 T, , b. 1.33 ×10−7 c. 1.33 ×10−8 d. 1.33 ×10−9, , The momentum of the photon of wavelength 5000 Å will, be:, a. 1.3 ×10−27 kg - m/sec, , b. 1.3 ×10−28 kg - m/sec, , 29, c. 4 ×10 kg - m/sec, , −18, d. 4 ×10 kg - m/sec, , Five elements A, B, C, D and E have work functions 1.2, eV, 2.4 eV, 3.6 eV, 4.8 eV and 6 eV respectively. If light of, wavelength 4000 Å is allowed to fall on these elements,, then photoelectrons are emitted by:, a. A, B and C, b. A, B, C, D and E, c. A and B, d. Only E, The specific charge of proton is 9.6 × 107 coul/kg. That, for α-particle will be:, a. 2.4 ×107 coul/kg, , b. 4.8 ×107 coul/kg, , c. 19.2 ×107 coul/kg, , d. 38.4 ×107 coul/kg, , A beam of α-particles moving with velocity 105 m/s enters, a region of electric and magnetic fields. All the three, r, r r, vectors υ , E and B are mutually perpendicular and the, strength of electric field is 2 × 10 4 V/m. If the beam passes, undeflected, then the strength of magnetic field must be:, a. 2 Tesla, b. 0.2 Tesla, c. 5 Tesla, , d. 2 × 109 Tesla, , 9., , The nucleus, , 115, 48 Cd, , after two successive β − decays will, , give:, a., , 115, 46 Pa, , b., , 114, 49 In, , c., , 113, 50 Sn, , d., , 115, 50 Sn, , 10. Which sample contains greater number of nuclei: a 5.00µCi sample of 240Pu (half-life 6560y) or a 4.45-µCi, sample of 243Am (half-life 7370 y):, a. 240Pu, b. 243Am, c. Equal in both, d. None of these, 11. An optical fibre communication system works on a, wavelength of 1.3 µm. The number of subscribers it can, feed if a channel requires 20 kHz are:, a. 2.3 × 1010, b. 1.15 × 1010, 5, c. 1 × 10, d. None of these, 12. A telephone link operating at a central frequency of 10, GHz is established. If 1% of this is available then how, many telephone channel can be simultaneously given, when each telephone covering a band width of 5 kHz., a. 2 × 104, b. 2 × 106, 4, c. 5 ×10, d. 5 ×106, 13. Oersted is a unit of, a. Dip, b. Magnetic intensity, c. Magnetic moment, d. Pole strength, 14. Position of a particle in a rectangular coordinate system is, (3, 2, 5). Then, its position vector will be:, a. 3ˆi + 5 ˆj + 2kˆ, , b. 3ˆi + 2ˆj + 5 kˆ, , c. 5ˆi + 3 ˆj + 2kˆ, , d. None of these, , 15. A particle moves in the xy-plane as υ = aiˆ + bxjˆ where,, , iˆ and, , ĵ are the unit vector along x and y-axis. The, , particle tarts form origin at t = 0. Find the radius of, curvature of the particle as a function of x:, , a   bx , b. 1 +  , b   a , , a2 + b2 x2, a., ba, 2, , c. b 1 +  ax  , , a , ,  b  , , 2, , 3/ 2, , , , , 3/ 2, , d. None of these, , 16. Rain water is falling vertically downwards with a velocity, υ. When the velocity of the wind is zero, water is, collected at a rate R. When the wind starts blowing, horizontally at a speed υ , the rate of collection of water in, the same vessel is:, υ, uR, a. u 2 + υ 2 R b. R, c., d. R, u, υ

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Physics, , 24, , 17. A particle of mass 0.3 kg is subjected to a force F = −kx, with k = 15 N / m. What will be its initial acceleration if it, is released from a point 20 cm away from the origin?, a. 5 m/s2, b. 10 m/s2, 2, c. 3 m/s, d. 15 m/s2, 18. A lift accelerated downward with acceleration 'a'. A man, in the lift throws a ball upward with acceleration, a0 (a0 < a). Then acceleration of ball observed by, observer, which is on earth, is:, a. (a + a0 ) upward, b. (a − a0 ) upward, c. (a + a0 ) downward, , d. (a − a0 ) downward, , 19. If a long spring is stretched by 0.02 m, its potential energy, is U. If the spring is stretched by 0.1 m, then its potential, energy will be:, U, a., b. U, 5, c. 5U, d. 25U, 20. Two bodies of masses m and 2m have same momentum., Their respective kinetic energies E1 and E2 are in the, ratio:, a. 1 : 2, , b. 2 : 1, , c. 1: 2, , d. 1 : 4, , 21. A particle undergoes uniform circular motion. About, which point on the plane of the circle, will the angular, momentum of the particle remain conserved?, a. Centre of circle, b. On the circumference of the circle, c. Inside the circle, d. Outside the circle, 22. This question has statement I and statement II. Of the four, choices given after the statements, choose the one that, best describes the two statements., Statement I: A point particle of mass m moving with, speed v collides with stationary point particle of mass M., If the maximum energy loss possible is given as:, , 1, ,  m , f  mv 2  , then f = , ., 2, , M +n, Statement II: Maximum energy loss occurs when the, particles get stuck together as a result of the collision., a. Statement I is true, Statement II is true, and Statement, II is the correct explanation of Statement I, b. Statement I is true, Statement II is true, but Statement II, is not the correct explanation of Statement I, c. Statement I is true, Statement II is false, d. Statement I is false, Statement II is true., , 23. Two particles are executing S.H.M. The equations of their, motion are, , , πT , , 3πT , ., y1 = 10 sin ω t +, , y2 = 25 sin ω t +, , 4 , 4 , , , , What is the ratio of their amplitude?, a. 1 : 1, b. 2 : 5, c. 1 : 2, d. None of these, 24. A body is executing Simple Harmonic Motion. At a, displacement x its potential energy is E1 and at a, displacement y its potential energy is E 2 . The potential, energy E at displacement (x + y) is:, E = E1 − E2, , a., , E =, , b., , c. E = E1 + E2, , E1 + E2, , d. E = E1 + E2, , 25. R and r are the radii of the earth and moon respectively., ρe and ρ m are the densities of earth and moon, respectively. The ratio of the accelerations due to gravity, on the surfaces of earth and moon is:, a., , R ρe, r ρm, , b., , r ρe, R ρm, , c., , r ρm, R ρe, , d., , R ρe, r ρm, , 26. The acceleration of a body due to the attraction of the, earth (radius R) at a distance 2 R from the surface of the, earth is: (g = acceleration due to gravity at the surface of, the earth), a., , g, 9, , b., , g, 3, , c., , g, 4, , d. g, , 27. A cylinder is filled with a liquid of density d up to a height, h. If the cylinder is placed in a lift moving downwards, with acceleration ‘a’ then pressure at the bottom is:, a. 0, , b. hdg, , c. hd ( g − a ) d. hd ( g + a ), , 28. Two stretched membranes of areas 2 m2 and 3 m2 are, placed in a liquid at the same depth. The ratio of the, pressure on them is:, a. 1 : 1, , b. 2 : 3, , c., , 2: 3, , d. 2 2 : 32, , 29. The Young's modulus of a rubber string 8 cm long and, density 1.5 kg / m3 is 5 × 108 N / m2 , is suspended on the, ceiling in a room. The increase in length due to its own, weight will be:, a. 9.6 × 10−5 m, , b. 9.6 × 10−11 m, , c. 9.6 × 10 −3 m, , d. 9.6 m, , 30. Two wires ‘A’ and ‘B’ of the same material have radii in, the ratio 2 : 1 and lengths in the ratio 4 : 1. The ratio of the, normal forces required to produce the same change in the, lengths of these two wires is:, a. 1 : 1, b. 2 : 1, c. 1 : 4, d. 1 : 2

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25, , Mock Test-4, , 31. A tube, closed at one end and containing air, produces,, when excited, the fundamental note of frequency 512 Hz., If the tube is opened at both ends the fundamental, frequency that can be excited is (in Hz), a. 1024, b. 512, c. 256, d. 128, 32. A train moves towards a stationary observer with speed 34, m/s. The train sounds a whistle and its frequency, , escapes. Assuming the volume of the vessel remaining, constant, the value of T is:, a. 80°C, b. 444°C, c. 333°C, d. 171°C, , 40. At room temperature, the rms speed of the molecules of a, certain diatomic gas is found to be 1930 m/s. The gas is:, a. H 2, b. F2, c. O2, d. CI 2, , registered by the observer is f1 . If the train’s speed is, , 41. Two rods, one of aluminium and the other made of steel,, having initial length l1 and l2 are connected together to, , reduced to 17 m/s, the frequency registered is f 2 . If the, , form a single rod of length l1 + l2 . The coefficients of, , speed of sound is 340 m/s then the ratio f1 / f 2 is:, , linear expansion for aluminium and steel are αa and αs, , a. 18/19, , respectively. If the length of each rod increases by the, same amount when their temperature are raised by t °C ,, , b. 1 / 2, , c. 2, , d. 19/18, , 33. A tuning fork of 512 Hz is used to produce resonance in a, resonance tube experiment. The level of water at first, resonance is 30.7 cm and at second resonance is 63.2 cm., The error in calculating velocity of second is:, a. 204.1 cm/s b. 110 cm/s c. 58 cm/s, d. 280 cm/s, 34. One quality of a thermometer is that its heat capacity should, be small. If P is a mercury thermometer, Q is a resistance, thermometer and R thermocouple type then, a. P is best, R worst, b. R is best, P worst, c. R is best, Q worst, d. P is best, Q worst, 35. A gas in an airtight container is heated from 25° C to 90°, C. The density of the gas will, a. increase slightly, b. increase considerably, c. remain the same, d. decrease slightly, 36. How much heat energy is gained when 5 kg of water at, 20°C is brought to its boiling point? (Specific heat of, water = 4.2 kJ kg–1c–1), a. 1680 kJ, b. 1700 kJ, c. 1720 kJ, d. 1740 kJ, 37. A gas is enclosed in a closed pot. On keeping this pot in a, train moving with high speed, the temperature of the gas:, a. Will increase, b. Will decrease, c. Will remain the same, d. Will change according to the nature of the gas, 38. The energy of a gas/litre is 300 joules, then, its pressure, will be:, 5, , a. 3 × 10 N / m, c. 10 5 N / m 2, , 2, , 5, , b. 6 × 10 N / m, , 2, , d. 2 × 10 5 N / m 2, , 39. Air is filled at 60°C in a vessel of open mouth. The, vessel is heated to a temperature T so that 1/4th part of air, , then find the ratio, , a., c., , l1, l1 + l2, , αs, αa, , b., , αs, , d., , (α a + α s ), , αa, αs, , αa, , (α a + α s ), , 42. When an ideal diatomic gas is heated at constant pressure,, the fraction of the heat energy supplied which increases, the internal energy of the gas, is:, 2, 3, 3, 5, a., b., c., d., 5, 5, 7, 7, 43. The coefficients of thermal conductivity of copper, mercury, and glass are respectively Kc, Km and Kg such that Kc > Km >, Kg. If the same quantity of heat is to flow per second per unit, area of each and corresponding temperature gradients are Xc,, Xm and Xg, then, a. X c = X m = X g, b. X c > X m > X g, c. X c < X m < X g, , d. X m < X c < X g, , 44. Three equal charges are placed on the three corners of a, square. If the force between q1 and q2 is F12 and that, between q1 and q3 is F13 , the ratio of magnitudes, , F12, F13, , is:, , a. 1/ 2, , b. 2, , c. 1/ 2, −6, , d., , 2, , −6, , 45. Two point charges 3 × 10 C and 8 × 10 C repel each, other by a force of 6 × 10−6 N . If each of them is given an, additional charge −6 × 106 N , the force between them will, be:, , a. 2.4 × 10 −3 N (attractive), , b. 2.4 × 10 −9 N (attractive), , c. 1.5 × 10 −3 N (repulsive), , d. 1.5 × 10 −3 N (attractive)

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Physics, , 26, , Answers and Solutions, 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , b, , b, , a, , c, , a, , c, , b, , b, , d, , b, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , b, , a, , b, , b, , b, , d, , b, , d, , d, , b, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , a, , d, , b, , b, , a, , a, , c, , a, , b, , a, , 31., , 32., , 33., , 34., , 35., , 36., , 37., , 38., , 39., , 40., , a, , a, , d, , d, , a, , a, , d, , d, , c, , c, , 41., , 42., , 43., , 44., , 45., , a, , d, , c, , b, , d, , 1., , (b) x5 = n, , λD, d, , =, , 2., , (b) When source is fixed and observer is moving towards, c+a, it: υ ' =, .υ, c, When source is moving towards observer at rest:, , −1, , ∴, , 3., , B=, , 9., , (d), ,  a a,  2a , = c 1 +  1 −  υ ≈ 1 +  υ, c ,  c c, , 2aυ 2a, ∆υ = υ '− υ =, =, c, λ, ∆υ 0.5 ×1000, a=λ, =, = 250 ms −1 = 900 km/hr, 2, 2, µ ∈ r dE, 1, (a) B = 0 0, =, ×1010, 2, dt 9 ×1016 × 2, , (c) Energy density, u =, , 1, ∈0 E02, 2, , 1, 2, = × 8.85 × 10−12 × ( 54.77 ) = 1.33×10 –8 J/m 3 ., 2, , 5., 6., , 7., , (a) p =, , h, , λ, , =, , 6.6 × 10−34, (5000 × 10−10 ), , = 1.3 ×10−27 kg -m / s, , 12375, = 3.09 eV, 4000, Photoelectrons emits if energy of incident light > work, function., (c) E =, , (b) ( e / m )α =, , ( e / m ) proton, 2, , v, , 2 × 104, , =, , 105, , 48 Cd, , 115, , = 0.2 Tesla, βo ), , 2( −1, , → 50 Sn115, , 19, N 1, = 5; Now, =, 3.8, N0  2 , , N, 1, 1, =   ⇒ N = 10.38 ×  , 10.38  2 , 2, , =, , 9 ⋅ 6 × 107, = 4 ⋅ 8 × 107 coul/kg., 2, , n, , 5, , = 0.32gm, , 11. (b) Optical source frequency, , f =, ∴, , c, , λ, , =, , 3 ×108, = 2.3 × 1014 Hz, 1.3 × 10−6, , Number of channels or subscribers =, , 2.3 × 1014, 20 × 103, , = 1.15 × 1010, , 12. (a) 1% of 10 GHz = 10 × 109 ×, Number of channels =, , 1, = 108 Hz, 100, , 108, = 2 ×104, 5 ×103, , 13. (b) 1 Oersted = 1 Gauss = 10−4 Tesla, 14. (b) If a point have coordinate (x, y, z) then its position, vector = xˆi + yˆj + zkˆ., , 15. (b), , dx, = a or x = at, dt, , dy, = bx = bat, dt, 2, , bat 2 ba  x  bx 2, =   =, 2, 2 a, 2a, , Or, , y=, , ∴, , dy b, d2y b, = x and, =, dx a, dx 2 a, , ∴, ,   dy  2 , 1 +   ,   dx  , R=,  d2y ,  2,  dx , , 5.56 ×10−8 T ., 4., , E, , 10. (b) Number of half lives n =, , =, ,  a, 1 + , c, c+a, υ"=, v' =, .υ = c  c υ, a, c−a, c−a, 1 − ,  c, , ∴, , ⇒, , 5, , 5 × 6.5 ×10 −7 × 1, = 32.5 × 10 −4 m, 10−3, , λD, , (b) For the beam to pass undeflected, eE = evB, , ⇒, , 5 × 6.3 × 10 −7 x1, = 16.25 ×10 −4 m, 2 d, 2 × 10−3, x5 – x3 ≈ 1.63 mm., x3 = (2n − 1), , 8., , 3/ 2, ,   b 2 , 1 +  x  ,   a  , =, b, a, , 3/ 2, , a b , = 1 +  x , b   a , , 2, , , , , , 3/ 2, , 16. (d) In general R (Rate of collection) = υ A cos θ, Where, θ is the angle between the velocity of the rain, and the normal to the cross-section A of the vessel., R = υ A cos 0° = υ A, When the wind blows, R′ = υ ' A cos θ

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27, , Mock Test-4, , Where, υ ' is the new velocity of rain., Now υ ' = u 2 + υ 2 and cosθ =, ∴, , υ, u2 +υ 2, , R′ = υ ' A cosθ = υ A = R, , 17. (b) Force on particle at 20 cm away F = kx, F = 15 × 0.2 = 3 N, ∴, , ⇒, , 2E1, +, K, , ⇒, , E1 +, , 25. (a) g =, , Force, 3, =, = 10 m / s 2, Acceleration =, Mass 0.3, , direction., x, U, 19. (d) U ∝ x ⇒ 2 =  2, U1  x 1, 2, , 2, , 2, , , 0.1 ,  = ,  = 25, ,  0.02 , , , U 2 = 25U, , P2, 1, 20. (b) E =, . If momentum are same then E ∝, m, 2m, , 21. (a) In uniform circular motion the only force acting on the, particle is centripetal (towards centre). Torque of this, force about the centre is zero. Hence, angular momentum, about centre remains conserved., 22. (d) Maximum energy loss =, , p2, p2, −, 2m 2( m + M ), , , p2 , Q KE =, , 2m , , Before collision the mass m and after collision the mass is, m+M, , p 2  M  1 2  M , M , ,  = mv ,  f =, , 2m  ( m + M )  2, m+ M ,  m + M , a1 10 2, =, =, a 2 25 5, , 24. (b) E1 =, , 1, Kx 2 ⇒ x =, 2, , 1, E 2 = Ky 2 ⇒ y =, 2, , and E =, , g, 4, R ρ, πρ GR ∴ g ∝ r ρ ∴ e = × e, 3, gm r ρm, 2, , 2, , 27. (c) If lift moves downwards with acceleration a, then, , ∴ Pressure at bottom = hdg ′ = hd ( g − a ), 28. (a) Pressure = hdg is independent of area., , L2 dg (8 × 10−2 ) 2 × 1.5 × 9.8, =, = 9.6 × 10−11 m, 2Y, 2 × 5 ×108, , 29., , (b) l =, , 30., , (a) F = Y × A ×, , ∴, , F1  r1   L2   2   1 , =     =     =1, F2  r2   L1   1   4 , , ⇒, , F1, = 1:1, F2, , l, r2, ⇒F∝, (Y and l are constant), L, L, , 2, , E1 m2 2m 2, =, =, =, E 2 m1, m, 1, , 23. (b), , E, , effective value of g is reduced from g to: g ′ = ( g − a ), , As a0 < a, hence net acceleration is in downward, , =, , 2E, K, , g,  R ,  R , 26. (a) g ' = g , = g, =, , , 9,  R+h,  R + 2R , , on earth = ( a − a0 ), , ∴, , E2 =, , [ As k = 15 N / m], , 18. (d) The effective acceleration of ball observed by observer, , ∴, , 2 E2, =, K, , 2 E1, ,, K, , 2E 2, K, , 1, K(x + y)2 ⇒ x + y =, 2, , 31. (a) f c =, , v, v, = 512 Hz , f c = = 2 fc 1024 Hz, 4l, 2l, ,  v , 32. (d) f1 = f , ,  v − vz , ,  340 ,  340 , f1 = f , = f , , 340, −, 34, , ,  306 ,  340 ,  340 , and f 2 = f , = f , ,  340 − 17 ,  323 , ∴, , f1 323 19, =, =, f 2 306 18, , 33. (d) The question is incomplete, as speed of sound is not, given. Let us assume speed of sound as 330 m/s. Then,, method will be as under., , λ, , ∴, 2E, K, , 2, , = ( 63.2 − 30.7 ) cm or λ = 0.65 m, 2, speed of sound observed,, , v0 = f λ = 512 × 0.65 = 332.8 m / s, ∴, , Error in calculating velocity of sound = 2.8 m/s = 280 m/s

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Physics, , 28, , 34. (c) Thermoelectric thermometer is used for finding rapidly, varying temperature., , 41. Given ∆l1 = ∆l2 or l1α a t = l2α s t, , 35. (c) Mass and volume of the gas will remain same, so, density will also remain same., , ∴, , l1 α s, =, l2 α a, , 36. (a) Q = m.c. ∆ θ = 5 × (1000 × 4.2) × (100 − 20), , or, , αs, l1, =, l1 + l2 α a + α s, , = 1680 × 103 J = 1680 kJ, 37. (a) vrms =, , 42., , v, T, (273 + 90), 3RT, ⇒ 2= 2 =, = 1.1, M, v1, T1, (273 + 30), , f =, , v, , % increase =  2 − 1 ×100 = 0.1 ×100 = 10%,  v1 , 38. (d) Energy = 300 J / litre = 300 ×103 J / m3, , (d) Fraction of supplied energy which increases the, internal energy is given by:, , For diatomic gas γ =, , 43. (c), , 2, 2 × 300 × 10, E=, = 2 × 105 N / m 2, 3, 3, 39. (d) For open mouth vessel, pressure is constant. Volume, is also given constant., 3, , P=, , Q, , ⇒, , T∝, , 1, T m, ⇒ 1= 2, m, T2 m1, , 1, th part escapes, so remaining mass in the vessel, 4, 3, m2 = m1, 4, (273 + 60) 3/ 4 m1, =, ⇒ T = 444 K = 171°C, T, m1, , Because, higher K implies lower value of the temperature, gradient., , 44. (b) F12 =, ⇒, , 1, 4πε 0, , ⋅, , q2, 1, q2, and F13 =, ⋅, 2, a, 4πε 0 (a 2) 2, , F12, =2, F13, , 45. (d) F ∝ Q1Q2 ⇒, , F1, QQ, = 1 2, F2 Q1 ' Q2 ', , 3 × 10−6 × 8 × 10−6, 3× 8, 4, =, =−, −6, −6, −6, −6, (3 × 10 − 6 × 10 )(8 × 10 − 6 × 10 ) − 3 × 2, 1, , 3RT, ; Room temperature T ≈ 300 K, M, 3 × 10 × 8 × 10, 3× 8, 4, =, =, =−, 6, 6, 6, 6, 3, (3, ×, 10, −, 6, ×, 10, )(8, ×, 10, −, 6, ×, 10, ), −, 3, ×, 2, 1, 3 × 8.31× 10 × 300, 1930 =, M, F, 6 × 10−3, ⇒, F2 = − 1 = −, = −1.5 × 10−3 N (Attractive), M = 2.0 g /mol or the gas is H 2 ., 4, 4, , 40. (a) vrms =, , ∴, , Q, ∆θ, ∆θ, ∆θ, 1, ⇒ K, = constant ⇒, =K, ∝, At, l, l, l, K, ,  ∆ θ   ∆θ ,  ∆θ , ,  <,  <,  ⇒ X c < Xm < X g,  l c  l m  l  g, , =, , ∴, , 7, 5, ⇒ f =, 5, 7, , Hence, If K c > K m > K g , then, , m, Hence from PV = µ RT =   RT, M , ⇒, , ∆U, (∆Q )V µCV ∆T 1, =, =, =, (∆Q ) P (∆Q) P µ CP ∆T γ

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29, , Mock Test-5, , Mock Test-5, 1., , 2., , 3., , 4., , 5., , A hollow metal sphere of radius 5 cm is charged so that, the potential on its surface is 10 V. The potential at the, centre of the sphere is:, a. 0 V, b. 10 V, c. Same as at point 5 cm away from the surface, d. Same as at point 25 cm away from the surface, A parallel plate condenser has a capacitance 50µ F in air, , 10. A 50 turns circular coil has a radius of 3 cm , , it is kept in, , and 110 µ F when immersed in an oil. The dielectric, , 11. A small coil is introduced between the poles of an, electromagnet so that its axis coincides with the magnetic, field direction. The number of turns is n and the cross, sectional area of the coil is A. When the coil turns through, 180o about its diameter, the charge flowing through the, coil is Q. The total resistance of the circuit is R. What is, the magnitude of the magnetic induction?, QR, Qn, QR, 2QR, a., b., c., d., nA, nA, 2 RA, 2nA, 12. If instantaneous current is given by i = 4 cos (ω t + φ ), , constant ' k' of the oil is:, a. 0.45, b. 0.55, c. 1.10, d. 2.20, A parallel plate condenser is connected with the terminals, of a battery. The distance between the plates is 6 mm. If a, glass plate (dielectric constant K = 9 ) of 4.5 mm is, introduced between them, then the capacity will become:, a. 2 times, b. The same c. 3 times, d. 4 times, The temperature coefficient of resistance for a wire is, 0.00125/ °C . At 300K its resistance is 1 ohm. The, temperature at which the resistance becomes 2 ohm is:, a. 1154 K, b. 1100 K, c. 1400 K, d. 1127 K, A carbon resistor has colour strips as violet, yellow brown, and golden. The resistance is:, a. 641 Ω, b. 741 Ω, c. 704 Ω, d. 407 Ω, , 6., , A magnet of magnetic moment M is situated with its axis, along the direction of a magnetic field of strength B. The, work done in rotating it by an angle of 180o will be:, a. − MB, b. + MB, c. 0, d. +2MB, , 7., , The intensity of magnetic field is H and moment of, magnet is M. The maximum potential energy is:, a. MH, b. 2 MH, c. 3 MH, d. 4 MH, , 8., , Field inside a solenoid is, a. Directly proportional to its length, b. Directly proportional to current, c. Inversely proportional to total number of turns, d. Inversely proportional to current, The magnetic moment of a current carrying loop is, , 9., , 2.1× 10−25 amp×m 2 . The magnetic field at a point on its, axis at a distance of 1Å is:, a. 4.2 × 10 −2 weber/m 2, , b. 4.2 × 10 −3 weber/m 2, , c. 4.2 × 10 −4 weber/m 2, , d. 4.2 × 10 −5 weber/m 2, , a magnetic field acting normal to the area of the coil. The, magnetic field B increased from 0.10 tesla to 0.35 tesla, in 2 milliseconds. The average induced e.m.f. in the coil, is:, a. 1.77 volts, b. 17.7 volts, c. 177 volts, , d. 0.177 volts, , amperes, then the r.m.s. value of current is:, a. 4 amperes, , b. 2 2 amperes, , c. 4 2 amperes, , d. Zero amperes, , 13. In LCR circuit, the capacitance is changed from C to 4C., For the same resonant frequency, the inductance should be, changed from L to:, a. 2L, b. L / 2, c. L / 4, d. 4 L, 14. A concave mirror and a converging lens (glass with µ =, 1.5) both have a focal length of 3 cm when in air. When, 4, , they are in water  µ =  , their new focal lengths are:, 3, , a. fLens = 12 cm, fMirror = 3 cm, b. fLens = 3 cm, fMirror = 12 cm, c. fLens = 3 cm, fMirror = 3 cm, d. fLens = 12 cm, fMirror = 12 cm, 15. Light is incident normally on a diffraction grating through, which first order diffraction is seen at 32°. The second, order diffraction will be seen at:, a. 84°, b. 48°, c. 64°, d. None of these, 16. Doppler shift for the light of wavelength 6000 Å emitted, from the sun is 0.04 Å. If radius of the sun is 7 × 108 m, then time period of rotation of the sun will be:, a. 30 days, b. 365 days, c. 24 hours, d. 25 days

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Physics, , 30, , 17. A plane monochromatic light falls normally on a, diaphragm with two narrow slits separated by a distance d, = 2.5 mm. A fringe pattern is formed on the screen placed, at D = 100 cm behind the diaphragm. If one of the slits is, covered by a glass plate of thickness 10µm, then distance, by which these fringes will be shifted will be:, a. 2 mm, b. 3 mm, c. 4 mm, d. 5 mm, , 18. The magnetic field between the plates of a parallel plate, capacitor is given by: B =, , a. r ≥ R, , b. r ≤ R, , µ0 Ir, , when, 2π R 2, c. r < R, , d. r = R, , 19. The energy contained in a small volume through which an, electromagnetic wave is passing, oscillates with, a. zero frequency, b. one-fourth frequency of wave, c. one-third frequency of wave, d. double frequency of wave, 20. Wavelength of a 1 keV photon is 1.24 × 10−9 m . What is, the frequency of 1 MeV photon?, a. 1.24 × 1015 Hz, , b. 2.4 × 1020 Hz, , c. 1.24 × 1018 Hz, , d. 2.4 × 1023 Hz, , 21. Monochromatic light of wavelength 3000 Å is incident, on a surface area 4cm2. If intensity of light is 150 mW/m2,, then rate at which photons strike the target is:, 10, , 13, , a. 3 × 10 / sec, , b. 9 ×10 / sec, , c. 7 × 1015 / sec, , d. 6 × 1019 / sec, , 22. When neon is used in Bainbridge mass spectrograph it is, found that the lighter isotope Ne20 reaches the photographic plate at a distance 10 cm form the slit. The, distance at which the heavier isotope Ne22 strikes the, plate is:, a. 11 cm, b. 9 cm, c. 4.5 cm, d. 24 cm, , 23. The energy of electron in first excited state of H-atom is, − 3.4 eV its kinetic energy is:, a. – 3.4 eV, , b. + 3.4 eV, , c. – 6.8 eV, , d. 6.8 eV, , 24. The nuclide 131 I is radioactive, with a half-life of 8.04, days. At noon on January 1, the activity of a certain, sample is 60089. The activity at noon on January 24 will, be:, a. 75 Bq, b. Less than 75 Bq, c. More than 75 Bq, d. 150 Bq, , 25. After five half lives what will be the fraction of initial, substance:, 10, , 1, b.  , 2, , 5, , 4, , 1, d.  , 2, , 3, , 1, a.  , 2, 1, c.  , 2, , 26. The electron density of E, F1, F2 layers of ionosphere is, 2 × 1011, 5 × 1011 and 8 × 1011 m–3 respectively. What is, the ratio of critical frequency for reflection of radiowaves?, a. 2 : 4 : 3, b. 4 : 3 : 2, c. 2 : 3 : 4, d. 3 : 2 : 4, 27. A TV tower has a height of 50 m. The maximum distance, up to which TV transmission can be received is approximately equal to: (radius of earth = 6.4 × 106 m), a. 5 km, b. 25 km, c. 100 km, d. 250 km, 28. Temperature can be expressed as a derived quantity in, terms of any of the following:, a. Length and mass, b. Mass and time, c. Length, mass and time, d. None of these, 29. If the vector 6 iˆ − 3 ˆj − 6 kˆ is decomposed into vectors, parallel and perpendicular to the vector iˆ + ˆj + kˆ then, the vectors are:, , (, , ), , a. – iˆ + ˆj + kˆ and 7 iˆ − 2 ˆj − 5 kˆ, , (, ), c. +2 ( iˆ + ˆj + kˆ ) and 4 iˆ − 5 ˆj − 8 kˆ, , b. –2 iˆ + ˆj + kˆ and 8 iˆ − ˆj − 4 kˆ, , d. None, , r, 30. The position vector of a particle is r = (a cos ωt )iˆ +, (a sin ωt ) ˆj . The velocity of the particle is:, a. Parallel to the position vector, b. Perpendicular to the position vector, c. Directed towards the origin, d. Directed away from the origin, 31. A particle moving with a uniform acceleration along a, straight line cover distances a and b in successive interval, of p and q second. The acceleration of the particle is:, pq ( p + q ), , a., , 2 ( bp − aq ), , c., , pq ( p − q ), , ( bp − aq ), , b., , d., , 2 ( aq + bp ), pq ( p − q ), , 2 ( bp − aq ), pq ( p + q )

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31, , Mock Test-5, , 32. A particle is projected with velocity υ0 along x-axis. The, deceleration on the particle is proportional to the square of, the distance from the organic, i.e., a = α x 2 . The distance, at which the particle stops is:, , 40. A particle is vibrating in a simple harmonic motion with, an-amplitude of 4 cm. At what displacement from the, equilibrium position, is its energy half potential and half, kinetic?, , 1/ 3, , a., , 3υ0, 2α, ,  3υ , b.  0 ,  2α , , c., , 3υ0, 2α, ,  3υ , d.  0 ,  2α , , p = a + bt 2 where, a and b are positive constants. The net, force acting on the body is:, , a. A constant, b. Proportional to t 2, c. Inversely proportional to t d. Proportional to t, 35. A force of 5 N, making an angle θ with the horizontal,, acting on an object displaces it by 0.4m along the, horizontal direction. If the object gains kinetic energy of 1, J, the horizontal component of the force is:, a. 1.5 N, b. 2.5 N, c. 3.5 N, d. 4.5 N, , d. 2 2 cm, , a. 4.9m / s 2, , b. 0.98m / s 2, , c. 0.49 m / s 2, , d. 49 m / s 2, , 42. If both the mass and the radius of the earth decrease by, 1%, the value of the acceleration due to gravity will:, a. Decrease by 1%, b. Increase by 1%, c. Increase by 2%, d. Remain unchanged, 43. In a satellite orbiting the earth, a coin is immersed in a jar of, water and released. It will:, a. rise, b. sink, c. remain where left, d. oscillate, 44. A wooden ball of density ρ is immersed in water of, density α to depth h and released. The height H above, the surface of water up to which the ball will jump out of, water is:, , a., , 36. Work done in raising a box depends on:, a. How fast it is raised, b. The strength of the man, c. The height by which it is raised, d. None of the above, , σ, h, ρ, , σ, , b.  − 1 h, ρ , d. zero, , c. h, , 45. The interatomic distance for a metal is 3 × 10−10 m . If the, interatomic force constant is 3.6 × 10 −9 N / Å , then the, , 37. If the increase in the kinetic energy of a body is 22%, then, the increase in the momentum will be:, a. 22%, b. 44%, c. 10%, d. 300%, 38. A particle moves in a circular path with decreasing speed., Choose the correct statement:, a. Angular momentum remains constant, r, b. Acceleration (a ) is towards the centre, c. Particle moves in a spiral path with decreasing radius, d. The direction of angular momentum remains constant, 39. A particle executing simple harmonic motion along y-axis, has its motion described by the equation y = A sin(ωt + B)., The amplitude of the simple harmonic motion is:, , c. A + B, , c. 3 cm, , 2 cm, , 9.8m / s 2 , then the value of ‘g’ on that planet is:, , 34. The linear momentum p of a body moving in one, dimension varies with time according to the equation, , b. B, , b., , 41. If the mass of earth is 80 times of that of a planet and, diameter is double that of planet and ‘g’ on earth is, , 1/ 3, , 33. A ball of mass 0.2 kg moves with a velocity of 20 m/sec, and it stops in 0.1 sec; then the force on the ball is:, a. 40 N, b. 20 N, c. 4 N, d. 2 N, , a. A, , a. 1 cm, , d., , A2 + B 2, , Young's modulus in N / m 2 will be:, , a. 1.2 × 1011, , b. 4.2 × 1011, , c. 10.8 × 10 −19, , d. 2.4 × 1010, , Answers and Solutions, 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , b, , d, , c, , d, , b, , d, , a, , b, , a, , b, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , d, , b, , c, , a, , d, , d, , a, , c, , d, , b, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , b, , a, , b, , c, , c, , c, , b, , d, , a, , b, , 31., , 32., , 33., , 34., , 35., , 36., , 37., , 38., , 39., , 40., , c, , c, , d, , a, , d, , b, , d, , d, , d, , b, , 41., , 42., , 43., , 44., , 45., , c, , b, , c, , b, , a

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Physics, , 32, , 1., , =, , (b) Since potential inside the hollow sphere is same as that, on the surface., , 2., , (d) Cmedium = K Cair ⇒ K =, , 3., , (c) C ∝, , Cmedium 110, =, = 2.20, Cair, 50, , C, 1, 6, d, ⇒ medium =, =, t, d, Cair, − +, d −t +, K, , =, , 6, , 13. (c) ω =, , =, , ⇒, 5., , 6., , 1, L2 C 2, , 15. (d) For second order diffraction,, , 2λ, = 2 sin θ 1 = 2sin 32° > 1, d, That is not possible. Hence, there is no second order, diffraction., sin θ 2 =, , 6, =, = =3, t, 4.5 2, − +, 6 − 4.5 +, K, 9, (d), , =, , 14. (a) Focal length of lens will increase by four times (i.e.,, 12 cm) while focal length of mirror will not affected by, medium., , 6, , 4., , 1, L1 C1, , L, ⇒ L2 = 1, 4, , ρ1 (1 + α t1 ), 1 (1 + 0.00125 × 27), =, ⇒ =, ρ 2 (1 + α t2 ), 2, (1 + 0.00125 × t ), , t = 854°C ⇒ T = 1127K, , 16. (d) Doppler shift, d λ =, or, , (b) Using standard colour codes., Violet = 7, yellow = 4, brown = 1 and gold = 5 % (tolerance), , v, λ , xλ = Rϖ  , c, c, ,  2π  λ, R,  = dλ,  T c, Substituting values for all parameter, we get, R × 2π λ, T=, × ⇒ T = 25 days, dλ, c, , So R = 74 ×101 ± 5% = 740 ± 5%, So its value will be nearest to 741 Ω ., , or, , (d) Work done MB(cos θ1 − cos θ 2 ), , 17. (a), , θ1 = 0° and θ 2 = 180°, x=, , xd, ( µ − 1) tD, ( µ − 1)t ⇒ x =, D, d, , (1.5 − 1) × 10 −3 × 100, = 0.2 cm, 0.25, , ⇒, , W = MB ( cos 0 − cos180 ) = 2 MB, , Or, , 7., , (a) Potential energy: U = − MB cos θ, , 18. (c) Consider a closed loop of radius r in a region between, the plates around the line joining centre of two || plates of, capacitor, where r < R. If ID is the total displacement, , ⇒, , U max = MH (atθ = 180°), , 8., , (b) B = µ o ni, , 9., , (a) Field at a point x from the centre of a current carrying, loop on the axis is:, , B=, , µ0 2 M, 4π, , ., , −7, , =, , x3, , 10 × 2 × 2.1 ×10, (10−10 )3, , =−, , N (B2 − B1 ) A cos θ, ∆t, , 500 × (0 − 0.1) × 100 × 10 −4 cos 0, = 5V, 0.1, , NBA, 11. (d) Induced charge: Q = −, (cos θ 2 − cos θ1 ), R, , ⇒, , NBA, =−, (cos180o − cos 0o ), R, QR, B=, 2 NA, , 12. (b) ir .m.s. =, , io, 2, , =, , 4, 2, , = 2 2 ampere, , ID, ×π r2 ., π R2, , Using Ampere’s circuital law we have:, r r, I r2, ∫ B ⋅ dl = µ0 I D or B 2π r = µ0 RD 2, , −25, , = 4.2 × 10 −32 × 1030 = 4.2 × 10 −2 W / m 2, , 10. (b) e = −, , current, then current threading the loop is I D =, , Or, , B=, , µ0 I D r, ., 2π R 2, , 19. (d) Use method of dimensions. Equating the dimensions, of two sides we note the relation (a) is dimensionally, correct., 20. (b) E = hν ⇒ν =, , E 1 × 106 ×1.6 × 10 −19, =, = 2.4 × 1020 Hz, h, 6.6 × 10−34, , n IAλ 150 ×10−3 × 4 ×10−4 × 3 ×10−7, 1, =, =, = 9 ×1013, t, hc, sec, 6.6 ×10−34 × 3 ×108, 22. (a) In Bainbridge mass spectrograph, particles have same, velocity., mv, 2mv, ⇒ d ( = 2r ) =, so, r =, qB, qB, 21. (b)

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Physics, , 34, →, , r, r, 38. (d) L = m ( r × v ), r r, Direction of ( r × v ) , hence the direction of angular, , ∴, , 43. (c) In a satellite bodies are weightless; so upthrust is zero., 44. (b) Wball < force of buoyancy; so ball in liquid experience, an upward force given by:, f = B −W = Vσ g − V ρ g, , momentum remains the same., Correct answer is (d)., , 39. (a) The amplitude is a maximum displacement from the, mean position., , If a upward acceleration, then (V ρ ) a = V σ g − V ρ g, ⇒, , 40. (d) Let x be the point where K.E. = P.E., Hence, ⇒, , a, , =, , 2, ,  M p   Re, 41. (c) g p = g e ,  ,  M e   Rp, 42. (b) As g =, , GM, 2, , 4, , = 2 2 cm, , If H is the height above water surface, then u ′ = v, and v′ = 0 so formula v 2 = u 2 − 2 gH gives 0 = v 2 − 2 gH, , 2, , ⇒, , H=, , v 2 2 (σ − ρ ) gh, =, 2g, ρ, 2g, , σ − ρ  σ, , =,  h =  − 1 h,  ρ  ρ , , therefore, 1% decrease in mass will, , R, decreases the value of g by 1%. But 1% decrease in, radius will increase the value of g by 2%., As a whole value of g increase by 1%., , ρ, , σ − ρ , v 2 = u 2 − 2ah = 0 + 2 ,  gh,  ρ , , 2, , ,  1 ,  = 9.8   (2)2, ,  80 , , , (σ − ρ ) g, , Velocity of ball at surface,, , 1, 1, mω 2 (a 2 − x 2 ) = mω 2 x 2, 2, 2, , 2x 2 = a 2 ⇒ x =, , a=, , 45., , (a) Y =, , 3.6 × 10−9 N / Å, = 1.2 × 1011 N /m 2, −10, 3 × 10 m

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Mock Test- 1, , 35, No. ………………….…………., , Test Booklet code, , AA, , Mock Test NEET / Pre Medical, This Test Booklet contain ... pages., Do not open this Test Booklet until you are asked to do so., , Important Instructions:, 1., , The Answer Sheet is inside this Test Booklet. When you are directed to open the test Booklet, take out the Answer Sheet and fill in the particulars on, Side-1 and Side-2 carefully with blue/black ballpoint pen only., , 2., , The test is of 3 hours duration and Test Booklet contains 180 questions. Each question carries 4 marks. For each incorrect response, one mark will be, deducted from the total score. The maximum marks are 720., , 3., , Use blue/Black Ballpoint Pen only for writing particulars on this page/marking responses., , 4., , Rough work is to be done on the space provided for this purpose in the test booklet only., , 5., , One completion of the test, the candidate must hand over the Answer Sheet to the invigilator before leaving the Room/Hall. The candidates are allowed, to take away Test Booklet only with them., , 6., , The CODE for this test Booklet is AA. Make sure that the CODE printed on Side-2 of the Answer Sheet is the same as that on this test Booklet. In case, of discrepancy, the candidate should immediately report the matter to the Invigilator for replacement of both the test booklet and the Answer Sheet., , 7., , The candidate should ensure that the Answer Sheet is not folded. Do not make any stray make on the Answer Sheet. Do not write you Roll No., anywhere else except in the specified space in the Test Booklet/Answer Sheet., , 8., , Use of white fluid for correction is not permissible on the Answer Sheet., , 9., , Each candidate must show on demand his/her Admit Card to the Invigilator., , 10. No candidate, without special permission of the Superintendent or Invigilator, would leave his/her seat., 11. the candidates should not leave the Examination Hall without handing over their Answer Sheet to the Invigilator on duty and sign the Attendance Sheet, twice. Cases where a candidate has not signed the Attendance sheet second time will be deemed not to have handed over the Answer Sheet and, dealt with as an unfair means case., 12. Use of Electronic/Manual Calculator is prohibited., 13. The Candidates are governed by all Rules and Regulations of the board with regard to their conduct in the Examination Hall. All case of unfair means, will be dealt with as per Rules and Regulations of the Board., 14. No part of the test Booklet and Answer Sheet shall be detached under any circumstances., 15. The candidates will write the correct Test booklet code as given in the test booklet/Answer Sheet in the Attendance Sheet., , NOTE: It’s the mock test as per previous year paper; sometimes NEET changes the test paper pattern and marking scheme too., PAPER CONSISTS, Physics: 45, Chemistry: 45 and Biology: 90 Questions each, , Name of the Candidate (in Capital letters): ____________________________________________________________________________________________, Roll Number, , : In figures ______________________________________________________________________________________________________, : In words _______________________________________________________________________________________________________, , Centre of Examination (in Capital letters): __________________________________________________________________________________________, Candidate‘s Signature: _________________________________________ Invigilator‘s Signature: _______________________________________________, Facsimile Signature Stamp of Centre Superintendent: ___________________________________________________________________________________

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36, , Chemistry, , Mock Test-1, Test-1, Mock, 1., , In, , the, , final, , answer, , of, , the, , expression, , 5, , (29.2 20.2) (1.79 10 ), . The number of significant, 1.37, figures is:, a. 1, b. 2, c. 3, d. 4, 2., , 3., , 4., , 5., 6., , 81.4 g sample of ethyl alcohol contains 0.002 g of water., The amount of pure ethyl alcohol to the proper number of, significant figures is:, a. 81.398 g, b. 71.40 g, c. 91.4 g, d. 81 g, The coordination number of a metal crystallising in a, hexagonal close-packed structure is:, a. 12, b. 4, c. 8, d. 6, In a solid ‗AB‘ having the NaCl structure, ‗A‘ atoms, occupy the corners of the cubic unit cell. If all the facecentred atoms along one of the axes are removed, then the, resultant stoichiometry of the solid is:, a. AB2, b. A 2 B, c. A 4 B3, d. A3 B4, The molarity of pure water is:, a. 55.6, b. 18, c. 1, , The freezing point of 1% solution of sodium carbonate in, water will be:, a. 0 C, b. Below 0 C, c. 1, , 7., , 8., , 9., , d. 5.56, , d. 3, , a., , 3, , The temperature at which a real gas obeys the ideal gas, laws over a wide range of pressure is:, a. critical temperature, b. Boyle temperature, c. inversion temperature, d. reduced temperature, b. Thomson, d. Bohr, , 10. The nature of anode rays depends upon:, a. Nature of electrode, b. Nature of residual gas, c. Nature of discharge tube d. All the above, 11. The equivalent weight of MnSO4 is half of its molecular, , c., , 1, , d., , 4, , 13. The standard reduction potentials at 298 K for the, following half cells are given:, , Zn 2 (aq) 2e, , Zn(s), , E, , 0.762 V, , Cr3 (aq) 3e, , Cr(s), , E, , 0.740 V, , 2H (aq) 2e, , H2 (g), , E, , 0.000 V, , Fe2 (aq) E, , 0.770 V, , Fe3 (aq) e, , Which is the strongest reducing agent?, a. Zn(s), , b. Cr(s), , d. Fe2 (aq), , c. H2 (g), , 14. Faraday‘s laws of electrolysis are related to the:, a. atomic number of the cation, b. atomic number of the anion, c. equivalent weight of the electrolyte, d. speed of the cation, 15. The compound which contains both ionic and covalent, bonds is:, a. CH 4, , b. H 2, , d. KCl, , c. KCN, , 16. The total number of electrons that take part in forming the, bonds in N 2 is:, b. 4, , c. 6, , d. 10, , H2 (g) I2 (g), , 17. For equilibrium reaction, , relation in between Kp and Kc is?, a. K p K c, b. K p, , 2K c, , c. K c, , Kp, , d. K c, , Kp, , 2HI(g), , 18. The unit of equilibrium constant for the gaseous reaction, , 2 NO(g), , N2O2 (g) is?, , a. atm, b. atm–1, c. atm2, d. no unit, 19. Given that the dissociation constant for H 2 O, , Kw, , 1 10, , 14, , 2, , is, , 2, , mole / litre . What is the pH of a 0.001, , molar KOH solution?, a. 10 11, b. 10 3, C. 3, D. 11, 20. The pH of 0.1 M solution of the following salts increases, in the order:, a. NaCl NH4 Cl NaCN HCl, , weight when it converts to:, a. Mn 2O3, , b. MnO3, , c. NaCN, , c. MnO 4, , d. MnO, , d. HCl, , b. HCl, 2, 4, , 2, , b., , a. 2, , The ratio of root mean square velocity to average velocity, of a gas molecule at a particular temperature is:, a. 1.086:1, b. 1:1.086, c. 2:1.086, d. 1.086:2, , Proton was discovered by, a. Chadwick, c. Goldstein, , 12. The oxidation number of phosphorus in Ba(H2 PO2 )2 is:, , NH4 Cl, , NaCl, , NH4 Cl, NaCl, , NaCl, , NaCN, , NaCN, HCl, NH4 Cl

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37, , Mock Test-1, , 21. The rate constant of a reaction depends on:, a. temperature, b. initial concentration of the reactants, c. time of reaction, d. extent of reaction, 22. The specific rate constant of a first order reaction depends, on the:, a. concentration of the reactant, b. concentration of the product, c. time, d. temperature, 23. Size of colloidal particles is:, a. 0.1m µ to 0.001m µ, b. 10 µ to 20 µ, , 30. Polarisation of electrons in acrolein may be written as:, δ+, , O, ||, δ−, a. H 2 C == CH — C— H, , O, ||, b. H 2 C == CH — C— H, , O, ||, δ+, c. Hδ2 −C == CH — C— H, , O, ||, δ+, d. H C == CH — C — H, 2, , δ+, , 31. Assign the IUPAC name for the following compound., CH 3 — CH 2 — CH == N — NH 2, , 32. What is the IUPAC name of the compound?, N1, 6, , 2, , 5, , 3, , c. Na 3 PO 4, , d. MgCl 2, , 25. The difference between heats of reaction at constant, pressure and constant volume for the reaction, , 2C6 H 6 (l ) + 15O 2 , →12CO 2 (g)6H 2 (l ) at 25°C in kJ is:, a. − 7.43, , b. + 3.72, , c. − 3.72, , d. + 7.43, , 26. For an endothermic reaction, where ∆ H represents the, enthalpy of the reaction in kJ/mol, the minimum value for, the energy of activation will be:, a. less than ∆ H, b. zero, c. more than ∆ H, d. equal to ∆ H, , a., c., , 77, 34, , Ge is:, , Ge, , b., , 77, 33, , As, , Se, , d., , 78, 36, , Se, , 28. The triad of nuclei that is isotonic is:, a., , 14, 6, , 17, C, 15, 7 N, 9 F, , b., , 12, 6, , 19, C, 14, 7 N, 9 F, , c., , 14, 6, , 17, C, 14, 7 N, 9 F, , d., , 14, 6, , 19, C, 14, 7 N, 9 F, , 29. The bond between carbon atom A and carbon atom B in, compound N == C— C H — CH 2, involves, the, 1, , 2, , hybridisation as:, a. sp2 and sp2, c. sp and sp, , 2, , COOH, , 4, , 24. Which of the following electrolytes is most effective in, the coagulation of gold solution?, a. NaNO3, b. K 4 [Fe(CN)6 ], , 77, 32, , b. N-aminopropanal, d. Propyl hydrazone, , a. N-aminopropane, c. Propanal hydrazone, , d. 25 µ to 30 µ, , 76, 32, , δ−, , δ+, , c. 0.05 m µ to 0.1m µ, , 27. An isotone of, , δ−, , b. sp3 and sp, d. sp and sp, , a. Carboxypyridine, b. Pyridine-3-carboxylic acid, c. Pyridine-1-carboxylic acid, d. None of the above, 33. Marsh gas mainly contains?, a. C 2 H 2, b. CH 4, c. H 2S, , d. CO, , 34. Which of the following will decolourise alkaline KMnO4, solution?, a. C3 H8, , b. CH 4, , c. CCl4, , d. C 2 H 4, , 35. Dehydration of 1-propanol by the use of H 2SO 4 and, subsequent treatment with HI gives:, a. CH3CH 2 CH 2 I, b. CH3CH(I)CH3, c. CH 2 = CHCH 2 I, , d. ICH = CHCH 3, , 36. Identify Z in the reaction:, alc KOH, Br2, KCN, C 2 H 5 I , → X →, Y , , →Z, , a. CH3CH 2 CN, , b. CNCH 2CH 2 CN, , c. BrCH 2CH 2 CN, , d. BrCH = CHCN, , 37. Methylated spirit is:, a. Methanol, c. Methanoic acid, , b. Methanol + ethanol, d. Methanamide, , 38. Carbolic acid is:, a. Phenol, c. Phenyl acetate, , b. Phenyl benzoate, d. Salol

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Chemistry, , 38, , Answers and Solutions, , 39. IUPAC name of CH3COCH3 is:, a. Acetone, c. Dimethyl ketone, , b. 2-propanone, d. Propanal, , 40. Ethanediol has which functional group(s)?, a. One ketonic, b. Two aldehydic, c. One double bond, d. Two double bond, 41. Which of the following structure of carboxylic acid, accounts for the acidic nature?, +, O, OH, a. R — C, b. R — C, OH, OH, O, c. R — C, d. None of these, H, , 43., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , b, , a, , a, , d, , a, , b, , a, , b, , c, , 10., b, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , b, , c, , a, , c, , c, , c, , a, , b, , d, , b, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , a, , d, , a, , b, , a, , c, , b, , a, , c, , d, , 31., c, 41., a, , 32., b, 42., c, , 33., b, 43., b, , 34., d, 44., b, , 35., b, 45., b, , 36., b, , 37., b, , 38., a, , 39., b, , 40., b, , 1., , 2., 3., , 42. Acetoacetic ester behaves as:, a. An unsaturated hydroxy compound, b. A keto compound, c. Both of these ways, d. None of these, , 1., , (29.2 − 20.2) (1.79 × 10 5 ) 9.0 × 1.79 × 105, =, 1.37, 1.37, Least precise terms i.e., 9.0 has only two significant figures., Hence, final answer will have two significant figures., (a) Pure ethyl alcohol = 81.4 − 0.002 = 81.398 ., (a) There consecutive layers of atoms in hexagonal close, packed lattice is shown below:, , (b), , A, , HNO3 / H 2SO 4, Sn / HCl, , → Intermediate →, Heat, , NH 2, , NH 2, , a., , B, , b., , NH 2, NH 2, , A, , NO 2, c., , d., , NH 2, , Atom X is in contact of 12 like atoms, 6 from layer B and, 3 from top and bottom layers A each., , NH 2, , 44. The correct order of basicities of the following, compounds is:, NH, (I) CH 3 — C, (II) (CH 3 ) 2 NH, NH 2, (III) CH 3 — CH 2 — NH 2, , O, ||, (IV) CH 3 — C — NH 2, , a. (II) > (I) > (III) > (IV), , b. (I) > (III) > (II) > (IV), , c. (III) > (I) > (II) > (IV), , d. (I) > (II) > (III) > (IV), , 45. Whether small, polymerisation?, a. Yes, b. No, c. Sometimes, d. Only H 2 O, , molecules, , liberate, , in, , addition, , 4., , +, (d) In NaCl, Na occupies body centre and edge centres while, , Cl− occupies corners and face centres, giving four Na + and four, Cl− per unit cell. In the present case A represent Cl− and B, +, represent Na . Two face centres lies on one axis., , 1, =1, 2, Number of B is removed because it is not present on face, centres., ⇒ A remaining = 4 − 1 = 3, B remaining = 4, Formula = A3 B4, , ⇒ Number of A removed = 2 ×, , 5., , (a) 1 mole of water = 18g,, Wt. of 1 L water = 1000 g, 1000, Molarity of H 2 O =, = 55.6, 18

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Mock Test-1, , 39, , 6., , (b) There is lowering in freezing point on the addition of a, solution., , 7., , (a) The two types of speeds are defined as; Root mean, 3RT, M, , square speed (u rms ), , 8RT, πM, For the same gas, at a given temperature, M and T are, same, therefore, , 8., , 3RT, :, M, , 8RT, πM, , 3:, , 8, π, , 3 : 2.54, , (b) It is the Boyle‘s temperature TB ., , 1.085 :1, , At Boyle‘s, , temperature, the first virial coefficient (b) vanishes and, real gas approaches ideal behaviour., a, TB, Here, ‗a‘ and ‗b‘ are van der Waals‘ constants., Rb, 9., , (c) Proton is represented by p having charge +1, discovered in 1988 by Goldstein., , 10. (b) The nature of anode rays depends upon the nature of, residual gas., 11. (b) Equivalent weight in redox system is defined as, , E, , Molar mass, n factor, , MnSO4, , 1, 2, , MnSO4, , MnO2, , 2( 2, , 4), , MnSO4, , MnO4, , 5( 2, , 7), , MnSO4, , MnO, , 4( 2, , 6), , Mn 2O3, , 2, 4, , 1( 2, , 3), , 16. (c) N 2 has triple bond and each covalent bond is, associated with one pair of electrons, therefore, six, electrons are involved in forming bonds in N 2 ., , Ba(H2 PO2 )2 , oxidation number of, , x, , 1, , H, , 2 (1 1) 0, Kc, , [N 2O4 ] atm, [NO2 ] (atm) 2, , 18. (b) K, , atm, , 14 3, , 19. (d) pH 14 pOH, , 1, , 11, , 20. (b) HCl is strong acid. In its 0.1M solution, [H ] 0.1M, and hence, pH 1 NH4 Cl(aq) hydrolyses in solution and, give acidic solution which is less acidic than 1M HCl ., NaCl is not hydrolysed in aqueous solutions. Its pH 7, NaCN undergoes hydrolysis in solution to give alkaline, solution. So that pH increases in the order,, , NH4 Cl, , NaCl, , NaCN, , 21. (a) The rate constant (k) of all chemical reaction depends, on temperature., , k, , Ae, , Ea / RT, , where,, , A Pre-exponential factor,, , Ea, , Activation energy., 22. (d) Specific rate constant of reaction depends on, temperature., 23. (a) The size of colloidal particles is of the order 0.1m to, 24. (b) K 4 [Fe(CN)6 ] is most effective in the coagulation of, , Ba is, , 2., , gold-solution., E, 25. (a) H, , H, 1, , n, , Kc (RT) or K p, , Kp, , Therefore,, H2 PO2 : 2 ( 1) x 2 ( 2), , Kc (RT) n ,, , 17. (a) K p, , 0.001m ., , Therefore, MnSO4 converts to MnO2 ., 12. (c) In, , Ionic bond, , HCl, , Here n-factor is the net change in oxidation number per, formula unit of oxidising or reducing agent. In the present, case-n-factor is 2 because equivalent weight is half of, molecular weight. Also,, , Covalent bonds, , .., N], , [K] [: C, , Average speed (u avg ), , u rms, u avg, , 15. (c) In KCN, the bonding between potassium ion and, cyanide ion is ionic while carbon and nitrogen are, covalently bonded in cyanide ion as:, , E, , n g RT, , 3RT, , E, , n g RT, , n g RT, , 3 8.314 298, , 3RT, 7433 J, , 26. (c), , 13. (a) Lower the value of E , stronger the reducing agent., 14. (c) Faraday‘s law of electrolysis is related to equivalent, weight of electrolytes as ‗‗The number of faraday‘s passed, is equal to the number of gram equivalent of electrolytes, discharged.‘‘, , E, , H 0, Reactioncoordinates, , 3 8.314 298, 743 kJ, , 7433 J, , 743 kJ

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40, , Chemistry, , Minimum value of activation energy must be greater than, H., , 36. (b) C2 H5 I, , CH 2 — CH 2, |, |, Br, Br, , 27. (b) Isotones are atoms having same number of neutrons, but different mass numbers., 76, 32, , Ge (neutrons, , 44) and, , 76, 33, , As (neutrons, , 44), , C— CH, 1, , 2, , sp, , sp 2, , 30. (d) CH2, , C H2, , CH2, , O, ||, CH – C – H, , CH2 – CH, , O, ||, CH, , O, ||, CH — C — H, , 33. (b) Methane is produced due to the decay of vegetables or, animal organisms present in swamps and marsh, by the, action of bacteria. Due to this method of formation,, methane is also known as marsh gas., , O, ||, CH3 — C, , 43. (b), , CH3CH CH2, , HI, , (enolic form), , HNO3 / H2SO4, , NH 2, Sn / HCl, , Aniline, , 44. (b) The relative basic character of 1 , 2 and 3 amines, also depends upon the nature of the alkyl group., R, Relative basic strength, R 2 NH R NH2 R 3 N NH3, CH3, , purple coloured, , H2SO4, , O, ||, CH — C — O — C2 H 5, , Nitrobenzene, , HO, , CH 2 — OH, |, MnO2, CH 2 — OH, , H, , NO2, , KMnO4 solution., , 35. (b) CH3CH2CH2OH, , (Z), , Acetoacetic ester ( keto form), , C or, C, decolourises the purple colour of alkaline, KMnO4, , CH 2 — CH 2, |, |, CN, CN, , It represents the acidic nature., O, O, ||, ||, 42. (c) CH3 — C — CH 2 — C — O — C2 H 5, , 34. (d) Unsaturated compounds which contain C, , CH2, , CH 2, , 40. (b) CHOCHO Two aldehydic, O, O, ||, |, 41. (a) R — C, OH, R —C—O, , 32. (b) The position of single heteroatom determines the, numbering in a monocyclic compound., , CH2, , (X), , 2 propanone, , 31. (c) It is named by placing the functional class name, ―h, ydrazone‖ as a separate word after the name of the, corresponding aldehyde or ketone. Here name of aldehyde, is ‗propanal‘., , C, , KCN, , CH2, , Br2, , 37. (b) 5–10% methyl and remaining ethanol is called, methylated spirit. It is also known as denatured alcohol, because it is unfit for drinking., 38. (a) 5% aqueous solution of phenol at room temperature is, called as carbolic acid., O, ||, 39. (b) CH 3CCH 3, , 28. (a) Isotonic means same number of neutrons., 29. (c), N, , (Y), , Alc. KOH, , C2 H5, , R 2 NH R NH2, , CHMe2, , R NH2, , CMe3, , NH3, , NH3, , R3 N, , NH3, , R 2 NH R 3 N, , R NH2, , R 2 NH R 3 N, , 45. (b) In addition polymerisation simple addition of, monomer unit takes place without any loss of small, molecules.,   

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Mock Test-2, , 41, , Mock Test-2, Test-2, Mock, 1., , 2., , The unit J Pa 1 is equivalent to:, a. m 3, , b. cm 3, , c. dm 3, , d. None of these, , n g of substance X reacts with m g of substance Y to form, p g of substance R and q g of substance S. This reaction can, be represented as, X Y R S . The relation which can be, established in the amounts of the reactants and the products, will be:, a. n m p q, b. n m p q, c. n m, , 3., , d. p q, , A substance A x By crystallises in a face centred cubic (fcc), lattice in which atoms ‘A’ occupy each corner of the cube, and atoms ‘B’ occupy the centres of each face of the cube., Identify the correct composition of the substance A x By, a. AB3, c. A3 B, , Molar freezing point depression constant can be expressed, in terms of freezing point of solvent (Tfo ) , heat of fusion, , ( Hf ) , molar mass (M) as;, , c. K f, 6., , 7., , RTfo M, Hf 1000, Hf ×1000× M, RTfo2, , b. K f, d. K f, , RTfo2, Hf 1000, o2, f, , RT M, 1000 Hf, , The ratio of the value of any colligative property of KCl, solution to that for sugar solution is nearly., a. 0.1, b. 0.5, c. 2.0, d. 2.5, Equal weights of methane and oxygen are mixed in an, empty container at 25 C. The fraction of the total, pressure exerted by oxygen is:, , 1, 3, 1, c., 3, a., , The mass of 1 mole of electrons is:, a. 9.1 10, , 28, , b. 1.008mg, , g, , c. 0.55mg, , d. 9.1 10, , 1, 2, 1 273, d., 3 298, b., , 27, , g, , 10. The ratio of specific charge of a proton and an, is:, a. 2 : 1, b. 1 : 2, c. 1 : 4, d. 1 : 1, , -particle, , 11. The volume strength of 1.5 N H2O2 is:, , MnO4, , Which of the following fcc structure contains cations in, alternate tetrahedral voids?, a. NaCl, b. ZnS, c. Na 2 O, d. CaF2, , a. K f, , 9., , b. 8.4, d. 8.0, , 12. For the redox reaction:, , d. Composition cannot be specified, , 5., , Helium atom is two times heavier than a hydrogen, molecule. At 298 K, the average kinetic energy of a, helium atom is:, a. two times that of a hydrogen molecule., b. same as that of a hydrogen molecule., c. four times that of a hydrogen molecule., d. half that of a hydrogen molecule., , a. 4.8, c. 3.0, , b. A 4 B3, , 4., , 8., , C2O24, , H, , Mn 2, , CO2, , H 2O, , The correct coefficients of the reactants for the balanced, reaction are:, MnO4, , H, , C2 O42, , a. 2, 5, 16, b. 16, 5, 2, c. 5, 16, 2, d. 2, 16, 5, 13. A solution containing one mole per litre of each, , Cu(NO3 )2 ,AgNO3 ,Hg2 (NO3 )2 and Mg(NO3 )2 is being, electrolysed by using inert electrodes. The values of standard, electrode potentials in volts (reduction potential) are:, , Ag / Ag, , 0.80,Hg 22 / 2Hg, , 0.79, , Cu 2 / Cu, , 0.34,Mg 2 / Mg, , 2.37, , With increasing voltage, the sequence of deposition of metals, on the cathode will be:, a. Ag,Hg,Cu,Mg, b. Mg,Cu,Hg,Ag, c. Ag,Hg,Cu, , d. Cu,Hg,Ag, , 14. The electric charge for electrode deposition of 1 g, equivalent of a substance is:, a. 1 ampere per second, b. 96,500 coulombs per second, c. 1 ampere for 1 hour, d. charge on 1 mole of electrons

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42, , Chemistry, , 15. Which of the following compound is covalent?, a. H 2, , b. CaO, , c. KCI, , d. Na 2S, , 16. Element X is strongly electropositive and element Y is, strongly electronegative, both are univalent. The, compound formed would be:, a. X Y, c. X Y, , b. X Y, d. X Y, , 17. If concentration are expresses as mol L–1, the equilibrium, constant, K for the reaction 2N2O5(g), O2(g) has the units., a. mol3 L 3, , b. mol L 1, , c. mol L, , d. no units, , 3, , 1, , 4NO2(g) +, , 2AB2 (g) the, , equilibrium constant K p at 300 K is 16.0. The value of, K p for AB2 (g), , A(g), , a. 8, c. 0.125, , 1, 2, , B2 (g) is:, , b. 0.25, d. 32, , 19. The degree of hydrolysis in hydrolytic equilibrium, A, , HA OH at salt concentration of 0.001, , H2 O, , M is: K a, a. 1 10, c. 5 10, , 1 10, , 3, 4, , 5, , b. 1 10, , 4, , d. 1 10, , 6, , 24. Which one of the following is not represented by sols?, a. Absorption, b. Tyndall effect, c. Flocculation, d. Paramagnetism, 25. The, , H of for CO2 (g),CO(g) and H2O(g) are –393.5, –, , 110.5 and 241.8 kJ mol 1 respectively. The standard, enthalpy change (in kJ mol 1 ) for the reaction CO2(g) +, H2 (g), a. 524.1, , 2A(g) B2 (g), , 18. For the reaction, , 23. A catalyst is used in a reaction to, a. change the nature of reaction products., b. increase the reaction yield., c. decrease the need for reactants., d. decrease the time required for the reaction., , c., , CO(g) + H2O (g) is:, b., , 41.2, , d., , 41.2, , 262.5, , 26. In thermodynamics, a process is called reversible when, a. surrounding and system change into each other., b. there is no boundary between system and surroundings., c. the surroundings are always in equilibrium with the, system., d. the system changes into the surroundings, spontaneously., 27. In the reaction, Po, , Pb, , Bi. If Bi belongs to, , group 15, to which group Po belongs?, a. 14, b. 45, c. 13, d. 16, , 20. If pK b for fluoride ion at 25o C is 10.83, the ionisation, constant of hydrofluoric acid in water at this temperature, is:, a. 1.74 10, , 3, , b. 3.52 10, , 3, , c. 6.75 10, , 4, , d. 5.38 10, , 2, , 21. A catalyst is a substance which, a. increases the equilibrium concentration of the product, b. changes the equilibrium constant of the reaction, c. shortens the time to reach equilibrium, d. supplies energy to the reaction, 22. The half-life period of a radioactive element is 140 days., After 650 days, 1 g of the element will reduce to:, 1, 1, a. g, b. g, 2, 4, 1, 1, g, c. g, d., 8, 16, , 28. The number of -particles emitted by, stable isotope, , 206, 82, , 218, 84, , Ra in changing to, , Pb is:, , a. 3, c. 6, , b. 4, d. 2, , 29. The compound which gives the most stable carbonium ion, on dehydrations is:, CH3, |, a. CH3 — CH — CH 2OH, b. CH 3 — C — OH, |, |, CH3, CH3, c. CH3 CH2 CH2 CH2OH, OH, |, d. CH3 — CH — CH 2 — CH3, , 30. The number of sigma and pi-bonds in 1-butene 3-yne are, a. 5 sigma and 5 pi, b. 7 sigma and 3 pi, c. 8 sigma and 2 pi, d. 6 sigma and 4 pi

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43, , Mock Test-2, , 31. Assign the IUPAC name., , a. Carbon tetrachloride, c. Mustard gas, , CH3, CH3 – 1C – 2CH2 – 3CH3, 9, , CH3–8CH2–7CH2–6CH2–5C–4CH2–3CH2–2CH2–1CH3, 1, , CH2 – 2CH – 3CH3, CH3, , a. 5-(2-methylpropyl)-5-(1,1-dimethylpropyl) nonane, b. 5-(1-1-dimethylpropyl)-5-(2-methylpropyl) nonane, c. 5,5-dibutyl-2,5,5-trimethylheptane, d. 5,5-dibutyl-3,3,6-trimethylheptane, 32. Match List I and List II and select the correct answer, using the codes given below., List I (Structures), List II (IUPAC names), a. CH 3 − CH 2 − CH = CH 2, H 3C, C=C, b., H, H 3C, C = CH2, c., H 3C, H 3C, C=C, d., H, Codes :, A, a., Q, b., R, c., Q, d., R, , (P) 2-methylprop-1-ene, , H, CH3, , (Q) but-1-ene, , CH3, , (S) trans-but-2-ene, B, R, Q, S, S, , 37. Which of the following is dihydric alcohol?, b. Ethylene glycol, a. Glycerol, c. Catechol, d. Resorcinol, 38. Which of the following are isomers?, a. Methyl alcohol and dimethyl ether, b. Ethyl alcohol and dimethyl ether, c. Acetone and acetaldehyde, d. Propionic acid and propanone, R′, 39. In the group, C = O the carbonyl carbon is joined to, R, other atoms by:, a. two sigma and one pi bonds, b. three sigma and one pi bonds, c. one sigma and two pi bonds, d. two sigma and two pi bonds, 40. IUPAC name of CCl3CHO is:, , (R) cis-but-2-ene, , H, , b. Carbonyl chloride, d. Carbon monoxide, , C, P, S, P, Q, , D, S, P, R, P, , 33. The compound with highest boiling point is?, a. 2-methyl butane, b. n-pentane, c. 2, 2-dimethyl propane, d. n-hexane, 34. The compound 1, 2-butadiene has?, a. only sp-hybridised carbon atoms., b. only sp 2 -hybridised carbon atoms., c. both sp and sp 2 -hybridised carbon atoms., d. sp, sp 2 and sp3 - hybridised carbon atoms., 35. The product of reaction of alcoholic silver nitrite with, ethyl bromide is:, a. Ethene, b. Ethyl alcohol, c. Nitroethane, d. Ethyl nitrite, 36. When chloroform is exposed to light and damp air, it, gives (among other products):, , a. Chloral, b. Trichloro acetaldehyde, c. 1, 1, 1-trichloroethanal, d. 2, 2, 2-trichloroethanal, 41. The general formula (RCO) 2 O represents:, a. An ester, b. A ketone, c. An ether, d. An acid anhydride, 42. A tribasic acid is:, a. Oxalic acid, b. Tartaric acid, c. Lactic acid, d. Citric acid, 43. Which of the following would be most reactive towards, nitration?, a. Benzene, b. Nitrobenzene, c. Toluene, d. Chlorobenzene, 44. Aniline reacts with acetaldehyde to form:, a. Schiff's base, b. Carbylamine, c. Imine, d. None of these, 45. Orlon has a unit:, a. Vinyl cyanide, c. Glycol, , b. Acrolein, d. Isoprene

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Chemistry, , 44, , 5., , Answers and Solutions, , (a) Osmotic pressure depends upon the number of, particles given by solute. Glucose remains undissociated,, , 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , a, , b, , a, , b, , a, , c, , a, , b, , c, , a, , sodium chloride gives (Na + + Cl − ) 2 mole particles per, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , mole and barium chloride gives (Ba 2+ + 2Cl− ) 3 mole, , b, , a, , cd, , a, , a, , a, , b, , a, , c, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , c, , d, , d, , d, , b, , c, , d, , a, , b, , b, , 31., b, 41., d, , 32., a, 42., d, , 33., d, 43., b, , 34., d, 44., a, , 35., c, 45., a, , 36., b, , 37., b, , 38., b, , 39., b, , 40., d, , 1., , a, , particles per mole. Therefore, correct order is A., , 6., , (c) Colligative property ∞ Number of particles, Colligative property (KCl) 2, = =2, Colligative property (sugar) 1, , 7., , (a) If x g of both oxygen and methane are mixed then :, , x, 32, x, Mole of methane =, 16, , Mole of oxygen =, , (a) JPa–1; Unit of work is Joule and unit of pressure is Pascal., Dimension of Joule, i.e., work, = F × L = MLT −2 × L, , = ML2T−2 , 1, 1, 1 1× A, L2, =, =, =, =, Pa Pressure F, F, M L T −2, A, 2 2, So, JPa–1 = ML T , , 2., , (b) X + Y, ng, , mg, , qg, , 1, =, x, x, 3, +, 32 16, According to law of partial pressure:, , Mole fraction of oxygen =, , Partial pressure of oxygen (PO2 ) = mole-fraction × total, , L2, = L3  ., MLT−2, , R+ S, pg, , ⇒, , x, 32, , pressure, ⇒, , PO2, , 8., , (b) According to kinetic theory, average kinetic energy, , n + m = p + q by law of conservation of mass., , p, , =, , 1, 3, , ⇒, , 1, th part of atom, 8, 1, to one unit cell and a face centre contribute, part of, 2, atom to one unit cell. Therefore,, 1, Number of A per unit cell = × 8 = 1, 8, 1, Number of B per unit cell = × 6 = 3, 2, Formula = AB 3, , 4., , (b) In ZnS,S2− (sulphide ions) are present at fcc position, , = 6.023 × 1023 × 9.1× 10−28 gm = 5.48 × 10 −4 gm, , giving four sulphide ions per unit cell. To comply with, , = 5.48 × 10−4 × 1000 mg = 0.548gm ≈ 0.55g., , 3., , (a) In cubic system, a corner contribute, , 1 : 1 stoichiometry, four Zn, , 2+, , ions must be present in, , four alternate tetrahedral voids out of eight tetrahedral, voids present., In NaCl, Na + ions are present in octahedral voids while in, Na 2 O, Na + ions are present in all its tetrahedral voids, , giving the desired 2 : 1 stoichiometry. In CaF2 , Ca 2+ ions, occupies fcc positions and all the tetrahedral voids are, occupied by fluoride ions., , 3, (∈) = k BT Where, k B is Boltzmann’s constant. Since, it, 2, is independent of molar mass, it will be same for He and, H 2 at a given temperature., , 9., , (c) 1 mole of electron, , = 6.023 ×1023 electron, Mass of one electron, = 9.1 × 10 −28 gm, , Mass of 1 mole of electron, , 10. (a) Charge on proton = +1 unit, charge on α particle = + 2, units, 2 : 1., 11. (b) Volume strength of H 2 O 2 = Normality, × 5.6, , = 1.5 × 5.6 = 8.4 V, 12. (a) The balanced redox reaction is:, , 2MnO −4 + 5C 2 O 24− + 16H + , → 2Mn 2+ + 10CO 2 + 16H 2O, Hence, the coefficients of reactants in balanced reaction, are 2, 5 and 16 respectively.

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45, , Mock Test-2, , 13. (c) In aqueous solution, only those ions that are less, electropositive, , than, , (E ° > 0) would, , hydrogen, , be, , deposited. Therefore, in the present case, only Ag, Hg and, Cu would be deposited on passing electricity through, aqueous solution of these ions, Mg will not be deposited., , E°, easier will be their, , Also, higher the value of, , reduction, therefore, the sequence in which ions will be, deposited on increasing voltage across the electrodes is:, Ag, Hg,Cu., 14. (d) One gram equivalent of an electrolyte required 1.0, mole of electronic charge for discharging., 15. (a) H 2 is a covalent, diatomic, molecule with a sigma, , 23. (d) A catalyst is used to decrease the time required for the, reaction hence it can decease or increase the rate of, reaction., 24. (d) Absorption, Tyndall effect and flocculation all are, related to sol but paramagnetism is not represented by sol., 25. (b) CO2 (g) + H 2 (g) , → CO(g) + H 2 O(g), , ∆H = Σf H o (products) − Σ∆ f H o (reac tan ts), = −110.5 − 241.8 − (−393.5) = +41.20 kJ, 26. (c) In a reversible thermodynamic process, system always, remains in equilibrium with surrounding., α, 27. (d) Po , →, Group 16, , covalent bond between two hydrogen atoms., 16. (a) Strongly electropositive, univalent, X will form an, 1 : 1 ionic compound with strongly electronegative,, univalent Y − X + Y , →X Y ., +, , −, , [A] [B 2 ], , 2, Squaring K 1/ 2 = [A] [B22 ], , [AB 2 ], , ∴, , K ′2 =, , 1, 16, , 19. (a) K h =, , ⇒, ∴, , or, , K=, , [A ][B 2 ]1 / 2, [AB 2 ], , 1, [AB 2 ]2, =, = 16, K ′ 2 [A]2 [B 2 ], , K′ =, , 1, = 0.25 0000, 4, , Kh, 1×10−9, =, = 1×10−3, C, .001, , 20. (c) K a × K b = K w, , ∴, , Ka =, , Kw, 10−14, =, = 6.75 × 10−4, Kb, 1.48 × 10−11, , 21. (c) A catalyst increases the rate of reaction but by the, same factor to both forward and backward directions., Hence, a catalyst shorten the time required to reach the, equilibrium., , 560, = 4 half − lives. Amount of reactant, 140, remaining after n-half-lives, , 22. (d) 560 days =, , n, , Ra , →, , 206, 82, , Ra + x 42 He + 0−1e, , 4x = 12 or x = 3, , 29. (b), , CH 3, CH 3, |, |, +, +, H, CH, →, —C, CH 3 — C — OH , 3, − H 2O, |, |, CH 3, , (3°, most stable alkyl carbocation), 30. (b), , H, H, , H, |, C == C— == C — H;, l − butene − 3yne, , It has 7 sigma and 3 pi-bonds., , Kw, 10−14, =, = 10−9, K a 1× 10−5, , K h = α 2 C; α =, , 218, 84, , Bi, Group 15, , Comparing mass numbers 218 = 206 + 4x + 0, ⇒, , 4, 4, / L), 17. (a) K = [NO 2 ] [O2 2 ] (mol / L) (mol, = mol 3 L−3, 2, [N 2 O 5 ], (mol / L), 2, 18. (b) K = [AB 22] [O 2 ] = 16.0, , 28. (a), , β, Pb , →, Group 14, , 4, , 1, 1, 1, =   × Initial amount =   × 1.0g = g, 2, 2, 16,  ,  , , 31. (b) If there is a side chain within the side-chain (i.e., if the, side-chain is substituted), the name of substituted sidechain begins with the first letter of its complete name., Thus, 1, 1-dimethylpropyl is alphabetised before 2methylpropyl. Hence, the name corresponding to (b) is the, correct name., H, 32. (a) (a) CH 3 − CH 2 − CH = CH 2 (b)CH3, C=C, H, CH3, (but-1-ene), (cis-but-2-ene), H 3C, H 3C, CH3, C = CH2, C=C, H, (c) H3C, (d) H, (2-methylprop-1-ene), , (trans-but-2-ene), , 33. (d) Among alkanes, boiling point increases with molar, mass. Among isomeric alkanes, branching decreases, boiling point. Therefore, n-hexane has highest boiling, point among these.

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Chemistry, , 46, , 34. (d) Structural formula of 1, 2-butadiene is:, H 2 C == C == CH — CH 3, ↑, ↑, ↑, ↑, sp 2, sp sp 2, sp3, , − H2O, , → (RCO)2 O, 41. (d) 2RCOOH , Acidanhydride, , alcoholic, 35. (c) CH 3 CH 2 Br + AgNO 2 , →, , CH 3CH 2 NO 2 + AgBr, , OH, |, 42. (d) HOOC — CH 2 — C — CH 2 — COOH, |, COOH, It is citric acid consist three carboxylic group., , Nitroethane, , 36. (b) CHCl3 + 12 O 2 , → COCl 2, , + HCl, , Carbonyl chloride, , 43. (b) The nitro group is very firmly linked to the benzene, nucleus and does not undergo any displacement reaction., Nitro group deactivates the benzene nucleus., , 37. (b) Glycols are dihydric alcohols (having two hydroxyl, groups). Ethylene glycol is the first member of this series., , NH2, , CH 2 OH, |, CH 2 OH, (Ethylene glycol), , 44. (a), , 38. (b) C 2 H 5OH and CH 3 − O − CH 3 are isomers., , 39. (b), , Trace of an acid.., + CH 3 — CHO →, N == CH — CH3, , + CH 3 — CHO →, , + H 2O, Anil or Schiff's base, , R, , σ, , R, , σ, , π, , C=O, σ, , Cl O, |, ||, 40. (d) Cl — C — C — H, |, Cl, 2, 2, 2, trichloroethanal, , 45. (a) Orlon is prepared by polymerisation of vinyl cyanide, in presence of ferrous sulphate and hydrogen peroxide.,  −CH 2 − CH − , Polymerisation, , nCH 2 = CHCN , →, |, , , FeSO 4 + H 2 O 2, CN  n, , Orlon, , + H

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Mock Test-3, , 47, , Mock Test-3, Test-3, Mock, 1., , 2., , 3., , The sulphate of a metal M contains 9.87% of M. This, sulphate is isomorphous with ZnSO4 .7H2 O . The atomic, weight of M is:, a. 40.3, b. 36.3, c. 24.3, d. 11.3, 74.5 g of a metallic chloride contain 35.5 g of chlorine., The equivalent weight of the metal is:, a. 19.5, b. 35.5, c. 39.0, d. 78.0, The packing efficiency of the two-dimensional square unit, cell shown below is:, , 8., , 9., , Equal weights of methane and hydrogen are mixed in an, empty container at 25 C. The fraction of the total, pressure exerted by hydrogen is:, 1, 8, 1, 16, a., b., c., d., 2, 9, 9, 17, Ratio of masses of proton and electron is:, a. Infinite, c. 1.8, , b. 1.8 103, d. None of these, , 10. Splitting of signals is caused by:, a. Proton, b. Neutron, c. Positron, d. Electron, 11. The number of moles of KMnO4 that will needed to react, , a. 39.27%, c. 74.05%, 4., , l, , b. 68.02%, d. 78.54%, , A compound M p Xq has cubic close packing (ccp), arrangement of X. its unit cell structure is shown below., The empirical formula of the compound is:, M, X, , with 1 mole of sulphite ion in acidic solution is:, 2, 3, a., b., 5, 5, 4, c., d. 1, 5, 12. The number of moles of KMnO4 that will be needed to, react completely with 1 mole of ferrous oxalate in acidic, medium is:, 2, 3, 4, a., b., c., d. 1, 5, 5, 5, 13. The reaction, 12 H2 (g) AgCl(s) H (aq) Cl (aq) Ag(s), occurs in which the galvanic cell., a. Ag | AgCl(s) | KCl(Soln) | AgNO3 | Ag, , 5., , 6., , 7., , a. MX, , b. MX 2, , c. M 2 X, , d. M5 X14, , Which of the following solutions has largest boiling, point?, a. 0.1 M glucose, b. 0.1 M NaCl, c. 0.1 M BaCl2, d. 0.1 M urea, Which of the following solutions have lowest freezing, point, a. 0.1 M NaCl, b. 0.01 M NaCl, c. 1.0 M NaCl, d. 0.001 M NaCl, When an ideal gas undergoes unrestrained expansion, no, cooling occurs because the molecules, a. are above the inversion temperature., b. exert no attractive forces on each other., c. do work equal to loss in kinetic energy., d. collide without loss of energy., , b. Pt | H2 (g) | HCl(soln) | AgNO3 (soln) | Ag, c. Pt | H2 (g) | HCl(soln) | AgCl(s)Ag, d. Pt / H2 (g) | KCl(soln) | AgCl(s)Ag, 14. When a lead storage battery is discharged, a. SO2 is evolved, b. lead is formed, c. lead sulphate is consumed, d. sulphuric acid is consumed, 15. If a molecule MX3 has zero dipole moment, the sigma, bonding orbitals used by M (atomic number < 21) are:, a. pure p, b. sp hybridised, c. sp 2 hybridised, , d. sp3 hybridised, , 16. Among the following the linear molecule is:, a. CO2, b. NO2, c. SO2, , d. ClO2

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48, , Chemistry, , 17. The ratio of K p / K c for the reaction CO(g)+, , 1, 2, , O2 (g), , CO2(g) is:, a. 1, c. (RT)1/ 2, , b. RT, d. (RT), , 18. For the reaction N2 (g), , O2 (g), , 1/ 2, , 26. One mole of a non-ideal gas undergoes a change of state, , 2NO(g) ; K p / K c, , b. 0, d. 1, , (4.0 atm, 5.0 L, 245 K) with, , 5.5 10 3 mol litre 1 , the pH of the solution will be:, , a. 2.26, c. 3.75, , b. 3.40, d. 2.76, , 20. Henderson’s equation is pH, , pK a, , log, , salt, acid, , . If the, , acid gets half neutralised the value of pH will be:, [pKa 4.30], a. 4.3, c. 8.60, , b. 2.15, d. 7, , is 3.0 10 5 s 1. If the rate is 2.40 10, , 5, , 4NO2+O2, , mol L 1s 1 , then, , 22. If I is the intensity of absorbed light and C is the, concentration of AB for the photochemical process., *, , AB , the rate of formation of, , c. I 2, , d. C.I, , III 5760 years, , IV, , a. I, c. III, , b. II, d. IV, and, , AB, , is, , 23. Example of intrinsic colloid is:, a. Glue, b. Sulphur, d. As2S3, , 24. Colloidal solution of arsenious sulphide can be prepared, by:, a. Electrodispersion method, b. Peptisation, c. Double decomposition, d. Hydrolysis], 25. Which of the following statements is false?, a. Work is a state function., , 238, 92, , 8U, , a. 1, 1, c. 1, 2, , 2.35 105 years, , particles are emitted in the, 234, 92, , U, , b. 1, 0, d. 2, 1, , 29. Amongst the following, the most basic compound is:, a. benzylamine, b. aniline, c. acetanilide, d. p-nittroaniline, , b. 1.2, d. 0.8, , b. I, , 27. The half life periods of four isotopes are given:, I 6.7 years, II 8000 years, , transformation, , the concentration of N2O5 (in molL 1 ) is:, , directly proportional to:, a. C, , a. 40.0, b. 42.0, c. 44.0, d. not defined, because pressure is not constant, , 28. How many, , 21. The rate constant for the reaction, 2N2O5, , a. 1.4, c. 0.04, , E 30.0L atm. The, , change in enthalpy ( H) of the process in L-atm is:, , 19. If the hydrogen ion concentration of a given solution is, , c. Fe, , (2.0 atm, 3.0 L, 95 K), , a change in internal energy,, , is equal to:, a. RT, c. (RT) 1, , AB hv, , b. Temperature is a state function., c. Change in the state is completely defined when the, initial and final states are specified., d. Work appears at the boundary of the system., , 30. The hybridisation of carbon atoms in C — C single bond, , H —C, , C — C — CH, , CH2 is, , a. sp3 sp3, , b. sp2 sp3, , c. sp sp3, , d. sp3 sp, , 31. Assign the IUPAC name for the following compound., Cl, Cl, , N=N, , a. (3-chlorophenyl)(4-chlorophenyl) diazene), b. 3,4-bis(chlorophenyl) diazene, c. (4-chlorophenyl (3-chlorophenyl) diazene, d. 3,4-dichloroazobenzene, 32. What is the IUPAC name of the following compound?, O, CH3 – C – CH = CH – CH2 – C – COOH, OH

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49, , Mock Test-3, , a. 2-hydroxy-6-oxohept-4-enoic acid, b. 2-hydroxy-6-ketohept-4-enoic acid, c. 5-acetyl-2-hydroxypent-4-enoic acid, d. 2-hydroxy-6-oxoheptanoic acid, 33. When propyne is treated with aqueous H 2SO 4 in presence, of HgSO4 , the major product is?, a. propanal, b. propyl hydrogen sulphate, c. acetone, d. propanol, , 42. Urea is:, a. Monoacidic base, c. Neutral, , b. Diacidic base, d. Amphoteric, , 43. Melting points are normally the highest for, a. Tertiary amides, b. Secondary amides, c. Primary amides, d. Amines, , 34. Which of the following compounds does not dissolve in, conc. H 2SO 4 even on warming?, a. Ethylene, c. Hexane, , 41. Number of oxygen atoms in a acetamide molecule is:, a. 1, b. 2, c. 3, d. 4, , b. Benzene, d. Aniline, , 35. Chloroform on heating with silver powder gives:, a. Acetylene, b. Methane, c. Ethylene, d. Nitroethane, 36. If methyl bromide and ethyl bromide are mixed in equal, proportion and mixture is treated with sodium, the number, of possible organic products is:, a. 1, b. 2, c. 3, d. 4, 37. Ethyl alcohol is industrially prepared from ethylene by:, a. Permanganate oxidation, b. Catalytic reduction, c. Absorbing in H 2SO 4 followed by hydrolysis, d. Fermentation, , 44. Amines behave as:, a. Lewis acids, c. Aprotic acids, , b. Lewis bases, d. Amphoteric compounds, , 45. The common acid used in the manufacture of rayon and, plastics is:, a. Methanoic acid, b. Ethanoic acid, c. Propanoic acid, d. Butanoic acid, Answers and Solutions, 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , c, , c, , d, , b, , c, , c, , b, , b, , b, , a, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , a, , b, , c, , d, , c, , a, , d, , d, , a, , a, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , d, , d, , a, , c, , a, , c, , d, , c, , a, , d, , 31., a, 41., a, , 32., a, 42., a, , 33., c, 43., c, , 34., c, 44., b, , 35., a, 45., b, , 36., c, , 37., c, , 38., b, , 39., b, , 40., c, , 38. Propene, CH 3 − CH = CH 2 can be converted to 1-propanol, by oxidation. Which set of reagents among the following is, ideal to effect the conversion?, a. Alkaline KMnO 4, , 1., , (c) As the, , given sulphate is isomorphous with, , ZnSO 4 .7H 2 O its formula would be MSO4 .7H 2 O .m is, the, , b. B2 H 6 and alkaline H 2 O 2, , atomic weight of M, molecular weight, MSO4 .7H 2 O = m + 32 + 64 + 126 = m + 222, , c. O3 / Zn dust, , Hence % of M =, , d. OsO 4 / CH 4 ,Cl 2, , m, × 100 = 9.87 (given) or, m + 222, , 100 m = 9.87m + 222 × 9.87 or 90.13m = 222 × 9.87, 39. Compound which gives acetone on ozonolysis?, a. CH3 − CH = CH − CH 3, b. (CH 3 ) 2 C = C(CH 3 ) 2, c. C 6 H 5CH = CH 2, 40., , m=, , 2., , (c) wt. of metallic chloride = 74.5, wt. of chlorine = 35.5, wt. of metal = 74.5 − 35.5 = 39, Equivalent weight of metal:, , d. CH 3CH = CH 2, NaOH, H 2O, , CH 3 — C — CH 2 — COOC2 H 5 , → A,, ||, O, Product ‘A’ in the reaction is:, b. C 2 H 5OH, a. CH 3COOH, c. CH3COCH3, , 222 × 9.87, = 24.3 ., 90.13, , or, , d. C2 H5CHO, , ∴, , =, , 39, weight of metal, × 35.5 = 39, × 35.5 =, weight of chlorine, 35.5, , of

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50, , 3., , Chemistry, , (d) Contribution of circle from corner of square, , 1, 4, , 8., , (b) Let x grams of each hydrogen and methane are mixed,, x, Moles of H 2, 2, x, Moles of CH 4, 16, x, 8, 2, Mole-fraction of H 2, x x, 9, 2 16, Partial pressure of H 2, 8, mole fraction of H 2, Total pressure, 9, , 9., , (b) mp / me, , Effective number of circle per square, , 1, 4 1(at centre), 4, , 2, , Area occupied by circle, , 2πr 2 ; r, , Also, diagonal of square 4r, , radius., 2 L, where L, side of, , square., Packing fraction, , Area occupied by circles, Area of square, , 2πr 2 2πr 2 π, 0.785, L2, 8r 2, 4, % Packing efficiency, = 78.5 %., 4., , 5., , 2MnO4, , Tb will depend upon the number of particles given by, , the solution in the solution (concentration is same)., (a) 0.1 M glucose (0.1 mole particles), (b) 0.1 M NaCl ( NaCl, , Na, , Cl ; 0.2 mole, , particles), (c) 0.1, , BaCl2, , ( BaCl2, , Ba 2, , 2Cl ; 0.3 mole, , particles), (d) 0.3 M urea (0.1 mole particles)., Tb will be largest for C and, therefore, boiling point will, be larges., 6., , (c), , Tf depends upon concentration because solution is, , the same. Therefore, 0.1 M NaCl will cause maximum, depression in freezing point and the freezing point of, 1.0 M NaCl solution will be lowest., 7., , 10. (a) Splitting of signals is caused by protons attached to, adjacent carbon provided these are not equivalent to the, absorbing proton., 11. (a) The balanced chemical reaction is:, , (b) Contribution of atom from the edge centre is ¼., Therefore, number of, 1, 1 (from body centre) 2, M, 4 (from edge centre), 4, 1, 1, Number of X, 8 (from corners), 6 (from, 8, 2, corners) = 4, Empirical formula M2 X4 MX2, (c), , 1837 1.8 103., , (b) According to postulates of kinetic theory, there is no, intermolecular attractions or repulsions between the, molecules of ideal gases., , 5SO32, , 6H, , 2Mn 2, , 5SCO24, , 3H2O, , 5 moles SO32 reacts with 2 mole of KMnO4, 1 mole of SO32 require, , 2, 5, , moles of KMnO4 ., , 12. (b) The balanced redox reaction is:, 3MnO4, , 5FeC2O4, , 24H, , 3Mn 2, , 5Fe3, , 10CO2 12H2O, 5 moles FeC2O4 require 3 mole of KMnO4, 1 mole of FeC2O4 will require, , 3, mole of KMnO4 ., 5, , 13. (c) In a galavanic cell, oxidation occurs in the left hand, electrode chamber and reduction in right hand electrode, chamber. In the following combination of cell., Pt | H2 (g) | HCl(soln) || AgCl(s) | Ag(s), The cell reactions are:, 1, At anode, 2 H2 (g), At cathode, Net:, , 1, 2, , AgCl(s), , H2 (g) AgCl(s), , H, , e, , e, , Ag, , H, , Cl, , Ag(s), , Cl, , 14. (d) In a lead storage battery, sulphuric acid is consumed, as: Pb PbO2 2H2SO4, 2PbSO4 2H2O, 15. (c) For non-polar MX3 , it must have triangular planar, arrangement, i.e., there should be, , sp 2 hybridisation, , around M., 16. (a) CO2 is a linear molecule because of sp hybridisation, around carbon atom.

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Mock Test-3, , 51, , 17. (d) K p, Here, , Kc (RT), n, , Kp, , 2, , n, , ,, , 1, 2, , 1, , 92 92 2 1 y, , or, , 1, 2, , y, , 2, , 29. (a), , —CH2 — NH2, , 1/ 2, , (RT), , Kc, , 18. (d) K p, Here, , benzyla min e, , Kc (RT), n, , Lone pair is not involved in resonance, most basic. In all, other cases, lone-pair of nitrogen is involved in resonance,, less basis., , n, , Kp, , 2 (1 1) 0, , Kc, , 1, , 30. (d) H — C, , 19. (a) [H ] 5.5 10 3 mole/litre, , pH, , log [H ]; pH, , 20. (a) pH, , pK a, , 2.26, , [Salt], log, [Acid], , 1, 4.3 log 2, 1, 2, , pH, , log [5.5 10 3 ]; pH, , 4.3 log 1; pH, , 4.3 0, , 4.3, , 21. (d) The unit of rate constant (t 1 ) indicating that the, decomposition reaction following first order kinetics., , Rate k[N2O5 ], Rate, k, , [N 2O5 ], , 2.40 10, 3 10 5, , 5, , 0.80 M, , 22. (d) Rate will be directly proportional to both, concentration and intensity, i.e., rate of formation of, , AB, , C.I., , C— C H, sp sp 2, , CH 2, , 31. (a) This compound is named as the derivative of, ‘diazene’., 32. (a) The principal functional group is –COOH. The parent, hydride is ‘heptane’., 33. (c) Alkynes undergo Markownikoff’s addition of water in, presence of, H2SO4 / HgSO4, , CH3 — C, , C — H H2SO4, , OH, |, CH3 — C, CH 2, , HgSO4, , O, ||, CH3 — C — CH3, acetone, , unstableenol, , 34. (c) Ethylene absorbs H2SO4 forming CH3 — CH2 OSO3 H, and dissolve., Benzene with warm H2SO4 , undergo sulphonation, and, , 23. (a) On shaking with the dispersion medium, colloids, directly form the colloidal sol. Hence they are called, intrinsic colloids. i.e., glue., , dissolve., Hexane, a hydrophobic molecule, does not react with, H2SO4 , remains insoluble., , 24. (c) Arsenious sulphide can be prepared by double, decomposition., , Aniline, with H2SO4 , forms anilinium sulphate salt and, , As2O3 3H2S, , As2S3 3H2O, , 25. (a) Work is not a state-function, it depends on path, followed., 26. (c), , H, , U, , (pV) 30 2(5 3) 5(4 2) 44 L atm., , 27. (d) Longer the half life period, more will be the stability, of the element., 28. (c), , 238, 92, , U, , 234, 92, , U x 42 He y 01e, , 238 234 4x 0, , or, , 4x, , 4 or x 1, , 92 92 2x y, , dissolve., 35. (a) CHCl3, , 6Ag, , 36. (c) (i) 2CH3Br, (ii) 2CH3CH2 Br, , Cl3CH, , 37. (c), , CH2, , CH2, , C4 H10 (Butane), , 2Na, H2SO4, , 6AgCl, , CH3CH3 (Ethane), , 2Na, , (iii) CH3Br C2 H5Br, , HC CH, , 2Na, , C3H8 (Propane), , CH3 CH2, , HSO4, , Hydrolysis, , CH3CH2 OH H2SO4, 38. (b) Hydroboration oxidation (Industrial preparation of, alcohol)., 1, 3CH3CH CH 2, B2 H6 Dry (CH3CH 2CH3 )3 B, ether, 2, (CH3CH2CH3 )3 B, , H2O2, , 3CH3CH2CH2 OH

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52, , Chemistry, , 39. (b) (CH3 )2 C C(CH3 )2, , O3, , 42. (a) Urea behaves as a monoacidic base and react with, nitric acid and form sparingly soluble nitrate., , 2CH3 CO CH3, , 40. (c) Ketonic hydrolysis:, CH3 CO CH2COOC2 H5, , NaOH, H 2O, , CH3COCH3 C2 H5OH CO2, 41. (a) Formula of Acetamide is CH3CONH2 which consist, , 43. (c) The higher boiling points of amide is because of, Intermolecular hydrogen bonding., —H — N — C O — —H — N — C O —, |, |, |, |, R, R, H, H, , —H — N — C, |, |, R, H, , single oxygen atom., Due to intermolecular hydrogen bonding they have high, boiling point than amine and amongst amide the order of, Boiling point are:, Primary > Secondary > Tertiary, This is because of alkyl group by which the carbonyl, oxygen do not form the hydrogen bond (other molecule) so, primary amide have high boiling point and tertiary Amides, , O—, , does not have to form bond with O of other amide and have, least B.P, 44. (b) In amines nitrogen has a lone pair of e . It can donate, a election pair. So, amines behave as a Lewis base., 45. (b) Ethanoic acid is used in the manufacture of resin and, plastics., ,   

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Mock Test-4, , 53, , Mock Test-4, Test-4, Mock, 1., , 7.5 gs of a gas occupies 5.8 L of volume at STP. The gas, is:, , 2., , a. NO, , b. N 2 O, , c. CO, , d. CO2, , 26, , c. 1.5 10, 3., , kg, 26, , kg, , b. 3 10, , 25, , d. 2.5 10, , kg, 26, , kg, , Which of the following exists as covalent crystals in the, a. Iodine, , b. Silicon, , c. Sulphur, , d. Phosphorus, , Experimentally it was found that a metal oxide has, formula M0.98O. Metal M, present as M 2 and M3 in its, oxide. Fraction of the metal which exists as M3 would be, , 5., , 6., , 7., , a. 7.01%, , b. 4.08%, , c. 6.05%, , d. 5.08%, , b. Positron, , c. Meson, , d. Nucleon, , a. Photon, , b. Neutron, , c. Positron, , d. Proton, , 11. The normality of 0.3 M phosphorus acid (H3PO3 ) is:, a. 0.1, , b. 0.9, , c. 0.3, , d. 0.6, , 12. The oxidation number of sulphur in S8 , S2 F2 , H2S, respectively, are:, a. 0,, , 1 and, , 2, , b., , 2,, , 1 and, , 2, , c. 0,, , 1 and, , 2, , d., , 2,, , 1 and, , 2, , 13. The standard reduction potentials, , Zn Zn 2, , 2e , E, , freezing point?, , Fe Fe2, , 2e , E, , a. 0.01 M urea, , b. 0.01 M KCl, , c. 0.01 M BaCl2, , d. 0.01 M NaCl, , The osmotic pressure of a solution is given by the relation., a., , RT / c, , b., , cT / R, , c., , Rc / T, , d., , / c RT, , A liquid is equilibrium with its vapour at its boiling point., , E , for the half, , reaction are as:, , Which of the following solutions will have maximum, , On the average, the molecules in the two phases have, , 0.76 V, 0.41 V, , The emf for the cell reaction,, , Fe2, , Zn, , Zn 2, , Fe is:, , a., , 0.35 V, , b., , 0.35 V, , c., , 1.17 V, , d., , 1.17 V, , 14. The standard reduction potentials of, , Cu 2 / Cu, , Cu 2 / Cu and, , are 0.337 V and 0.153 V respectively. The, , equal:, , standard electrode potential of Cu / Cu half-cell is:, , a. inter-molecular forces, , a. 0.184 V, , b. 0.827 V, , b. potential energy, , c. 0.521 V, , d. 0.490 V, , c. kinetic energy, d. total energy, 8., , a. Deutron, , electron?, , solid state?, , 4., , The proton and neutron are collectively called as:, , 10. Which of the following has the same mass as that of an, , The mass of a molecule of water is:, a. 3 10, , 9., , Rate of diffusion of a gas is:, a. Directly proportional to its density, b. Directly proportional to its molecular weight, c. Directly proportional to the square root of its molecular, weight, d. Inversely proportional to the square root of its molecular, weight, , 15. The ion that is isolectronic with CO is:, a. CN, , b. O 2, , c. O 2, , d. N 2, , 16. Carbon tetrachloride has no net dipole moment because of, a. its planar structure., b. its regular tetrahedral structure., c. similar sizes of carbon and chlorine atoms., d. similar electron affinities of carbon and chlorine.

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54, , Chemistry, , 17. The, , equilibrium, , constant, , 3, , for, , the, , reaction:, , The rate constant of reaction in s, , 2, , Fe SCN (aq) is 140 at, , Fe (aq) SCN (aq), , a. 2 10, , 298 K. The equilibrium constant for the reaction is:, , 2Fe3 (aq) 2SCN (aq), , NO(g), , the, 1, 2, , gaseous, , O2 (g), , d. 70, reactions, , at, , NO2 (g), , (ii) 2NO2 (g), , 300, , K,(i), , b. K 2, , K1, 2, , c. K 2, , 1, K12, , d. K 2, , K12, , d. None of these, 25. Which of the following reactions defines H o ?, , 19. According to Bronsted-Lowry concept, the correct order, of relative strength of bases follows the order, a. CH3COO, b. CH3COO, c. OH, , OH, , OH, , Cl, , CH3COO, , Cl, , OH, , Cl, , CH3COO, , H2SO4, , OH, , SO42, , d., 20., , Cl, , a. HSO, , a. C(diamond), , O2 (g), , CO2 (g), , b. 12 H2 (g), , 1, 2, , F2 (g), , HF(g), , c. N2 (g) 3H2 (g), , 2NH3 (g), , d. CO(g), , CO2 (g), , 1, 2, , O2 (g), , 26. Spontaneous adsorption of a gas on solid surface is an, exothermic process because, a. H increases for system, H2 O Which is correct about, , conjugate acid base pair, 2, 4, , b. Atomic radii, d. Size of an ion, , b. The amount of gold required to break the colloid., c. The amount of gold required to protect the colloid., , The equilibrium constant K1 and K 2 are related as:, , 1, K1, , 4, , 24. Gold number gives:, a. The amount of gold present in the colloid., , : K2, , a. K 2, , d. 2 10, , a. Ionic radii, c. Valency of an ion, , : K1, , 2NO(g) O2 (g), , 4, , 5, , 23. The capacity to bring about coagulation increases with:, , b. 140, , c. 19600, 18. Consider, , is:, , b. 3.45 10, , c. 1.386 10, , 2Fe SCN2 (aq), , a. 280, , 4, , 1, , is conjugate acid of base SO, , 2, 4, , b. HSO4 is conjugate base of acid SO24, c. SO4 is conjugate acid of base HSO4, d. None of these, , b., , S increases for gas, , c., , S decreases for gas, , d., , G increases for gas, , 27. In a radioactive change: A., A, Z, , P, , A, Z 1, , Q, , A 4, Z 1, , R, , A, Z, , S radiation are emitted in the sequence., , a., , , ,, , b., , , ,, , (g) The rate of this reaction can be expressed in terms of, time derivatives of concentration of N2(g),H2(g) or NH3, , c., , , ,, , d., , , ,, , (g). Identify the correct relationship amongst the rate, expressions., , d[N 2 ], 1 d[H 2 ] 1 d[NH3 ], dt, 3 dt, 2 dt, d[NH3 ], d[N 2 ], d[H 2 ], 3, 2, b. Rate, dt, dt, dt, d[N 2 ] 1 d[H 2 ] 1 d[NH3 ], c. Rate, dt, 3 dt, 2 dt, a. Rate, , d[N 2 ], d[H 2 ] d[NH3 ], dt, dt, dt, 22. In a first order reaction the concentration of reactant, d. Rate, , decreases from 800 mol / dm3 to 50 mol/dm3 in 2 × 104 s., , Q, , A 4, Z 1, , 2NH3, , 21. Consider the chemical reaction N2(g)+3H2(g), , A, Z 1, , P, , 28. During the fission of U-235, a large amount of energy of, the order of 180 MeV is generated per nucleus fissioned., The amount of energy released by the fission of 0.235 g of, U-235 is:, a. 1.08 1023 kJ, , b. 1.08 107 kJ, , 16, c. 1.73 10 kJ, , 7, d. 1.73 10 kJ, , 29. What is the decreasing order of strength of the bases?, , OH , NH2 ,H — C, a. CH3 CH2, b. H — C, , C, , NH2, , C and CH3 — CH2, , H —C, , CH3 — CH2, , C, NH2, , OH, OH, , A 4, Z 1, , R

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Mock Test-4, , c. OH, , 55, , NH2, , d. NH2, , H —C, , H —C, , C, , C, , CH3 — CH2, , OH, , CH3 — CH2, , 30. In the following compounds:, OH, , OH, , OH, , OH, , NO2, , (I), (II), The order of acidity is:, , (III), , a. III > IV > I > II, c. II > I > III > IV, , (IV), , CH3 – CH2, , SO2 – O – CH3, , c. Methyl 4-ethyl cyclohexanesulphonate, d. None of the above, 32. Write the IUPAC name of the following compound., CO – O – C2H5, CO – Cl, a. 2-(ethoxycarbonyl) benzoyl chloride, b. Ethyl 2-(chlorocarbonyl) hexanoate, c. Ethyl 2-(chlorocarbonyl) benzoate, d. None of the above, 33. Baeyer’s reagents is?, a. alkaline permanganate solution., b. acidified permanganate solution., c. neutral permanganate solution., d. aqueous bromine solution., 34. Acidic hydrogen is present in?, a. ethyne, b. ethene, c. benzene, , d. ethane, , 35. 1-chlorobutane on reaction with alcoholic KOH gives:, a. 1-butene, c. 2-butene, , b. 1-butanol, d. 2-butanol, , 36. The reaction of chlorine with propene at 400 600 C, gives mainly., , d. ClCH2CH CH2, , a. Acetone, c. Ethylene oxide, , b. Methyl cyanide, d. Ethyl acetate, , 38. The fermentation of starch to give alcohol occurs mainly, with the help of :, a. O 2, , b. Air, , c. CO2, , d. Enzymes, , 39. From which of the following tertiary butyl alcohol is, obtained by the action of methyl magnesium iodide?, , a. Ethyl 4-ethyl benzenesulphonate, b. Methyl 4-ethylbenzenesulphonate, , c. CH3CH CHCl, , alcohol by reacting with CH3MgI, , b. I > IV > III > II, d. IV >III >I > II, , 31. Assign the IUPAC name of the following compound., , CH 2 CH CH 2, | |, b. |, Cl Cl Cl, , 37. Which one of the following will produce a primary, , NO2, CH3, , a. CH3CHClCH2Cl, , 40., , a. HCHO, , b. CH3CHO, , c. CH3COCH3, , d. CO2, , CH3 CH2 C CH, , R, H2O, , Butanone, R is:, , a. Hg, , b. KMnO4, , c. KClO3, , d. K 2Cr2O7, , 41. Fats and oils are:, a. Acids, c. Esters, , b. Alcohols, d. Hydrocarbons, , 42. Vinegar obtained from sugarcane has:, a. CH3COOH, , b. HCOOH, , c. C6 H5COOH, , d. CH3CH2COOH, , 43. Which of the following compound gives dye test?, a. Aniline, b. Methylamine, c. Diphenylamine, d. Ethylamine, 44. In hydrolysis of aniline, the reagent used is:, a. Dil. HCl, b. Acetyl chloride, c. CH3OH, d. None of these, 45. Which of the following is a protein?, a. Pepsin, c. ATP, , b. Adrenaline, d. Glutamine

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56, , Chemistry, , Answers and Solutions, 1., , 2., , 3., , 0, , 10. (c) Positron ( 1e ) has the same mass as that of an, , 4., , 5., , 6., , 7., , 8., , 9., , 10., , a, , a, , b, , b, , a, , d, , c, , d, , d, , c, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , d, , a, , b, , c, , a, , b, , c, , c, , c, , a, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , a, , c, , c, , d, , b, , c, , b, , d, , a, , d, , 31., , 32., , 33., , 34., , 35., , 36., , 37., , 38., , 39., , 40., , b, , c, , a, , a, , a, , d, , c, , d, , c, , a, , 41., , 42., , 43., , 44., , 45., , c, , a, , a, , a, , a, , 1., , (a), , 7.5, 22.4, 5.8, , (a) 6 1023 molecules has mass, , 28.96, , 18 gm, , 1 molecule has mass, , 18, 6 1023, , 3 10, , 23, , gm, , 3 10, , 26, , kg., , (b) Silicon exists as covalent crystal in solid state., (Network like structure, as seen in diamond)., , 4., , (b) From the valency of M, , 2, , and M , it is clear three, 3, , M 2 ions will be replaced by M3 causing a loss of one, M3 ion, Metal oxide M0.98O, if x ions of M are in +3 state then, 3x + (0.98 – x) 2 = 2, x = 0.04, Therefore % of M, , 0.04 100, 4.08%, 0.98, , 5., , (a) 0.01 M urea will have maximum freezing point, because it will have lowest depression in freezing point, (being non-electrolyte)., , 6., , (d), , 8., 9., , Therefore, Normality, basicity, , 12. (a) In S8 , oxidation number of S is 0, elemental state., , 1 oxidation state, hence S is in, , 1, , In H2S,H is in 1 oxidation state, hence S is in, , 2, , In S2 F2 ,F is n, oxidation state., oxidation state., , 2e, Zn 2, , Zn, Fe2, , Fe;, 2e ;, Zn 2, , Zn, , Fe;, , E, , 0.41 V, , E, , 0.76 V, , E, , 0.35 V, , 14. (c) E is an intensive property:, , E, , G, , (i) Cu, , 2, , (ii) Cu, , 2, , nE F, , 2e, , Cu 0.337V, , 0.674 F, , e, , Cu 0.153V, , 0.153 F, , Subtracting (ii) from (i) gives:, , Cu, , e, , E, , Cu G, , 0.521 V, , 0.521F, , nE F, , n 1, , electrons:, , (c) At liquid-vapour equilibrium at boiling point., Molecules in two phases posses the same kinetic energy., (d) Rate of effusion, , Only two replaceable hydrogens, , 15. (a) CO has a total of 14 electrons and CN also has 14, , CRT, , / C RT, , 7., , H, , 13. (b) Fe2, , 3., , 3, , O, ||, P OH, |, OH, , = 0.3 x 2 = 0.6, , 7.5gm, , So molecular weight = 29, So, molecular formula of compound is NO., 2., , 11. (d) Phosphorus acid is a dibasic acid as:, , molarity basicity, , 5.8 L of gas has mass, , 22.4 L of gas has mass, , electron ( 1e0 )., , 1, : definition., m, , (d) Nucleus consists of proton and neutron both are called, as nucleon., , C(6e ) N(7e ) e, , CN (14e ), , 16. (b) CCl4 has a regular tetrahedral shape., , Cl, μ, , Cl, , C μ Cl, , Cl, , Net dipole = 0

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Mock Test-4, , 57, , [FeSCN ], 140 ;, [Fe3 ][SCN ], , 17. (c) K, , 2, , 2, , [FeSCN ], [Fe3 ]2 [SCN ]2, , K, , 27. (b) The complete sequence is:, , 2, , A, Z, , (140) 2, , 19600, , [NO2 ], and K 2, [NO][O2 ]1/ 2, , 18. (c) K1, , 28. (d), , [NO]2 [O2 ], [NO2 ], , weak acid conjugate acid of, , CH3COO is, , CH3COOH which is stronger than H 2 O. while conjugate, acid of Cl is HCl which is strongest out of there. so the, , OH, , of, , relative, , CH3COO, , 20. (a) HSO4, , strength, , SO42, , OH, , For N2 3H2, , 1 d[B], b dt, 1 d[H 2 ], 3 dt, , 1 [A]0, ln, t [A], , 1, 800, ln, 2 104 50, , aA bB, , 1 d[C], C dt, , Here, , H, , 1, 2, , F2 (g), , G, , S, , 29. (a) CH3CH2, , H —C, , C, , HO, , It is because, the order of acid-strength of their conjugate, acid is:, , CH3CH2, , NH3, , H —C, , C — H H 2O :, , Acid strength., 30. (d) Nitro group from para position exert electron, , 4ln 2, s, 2 104, , 1, , 32. (c) –COO– group has priority for citation as principal, 4, , 1.386 10 s, , 1, , HF(g), , process, , G, , 0, , Also;, , H T S for adsorption of gas on solid surface, , 0. Therefore, in order to be G, , negative., , NH2, , 1.73 107 kJ, , group., , [A]0, ln, [A], , Standard molar enthalpy of formation of HF, spontaneous, , U-235, , 6.02 1020 180 MeV, , 6.02 1020 180 1.6 10 16 kJ, , functional group. The acyl halide is expressed by a prefix, ’chlorocarbonyl’., 33. (a) Baeyer’s reagent is cold, dilute, alkaline permanganate, solution, used to detect presence of olefinic bonds., 34. (a) Terminal alkynes are slightly acidic, forms salt with, very strong base like Na, NaNH2 etc., H—C, , ethyne, , 0, H must be, , H—C, , C— H Na, , 35. (a) CH3CH2CH2CH2Cl, 36. (d) CH2, , For, , g, , 31. (b) The parent acid is 4-ethylbenzene sulphonic acid. The, alkyl group which replaces the acidic H-atom is methyl, , 1 d[NH3 ], 2 dt, , (g)., 26. (c), , 0.235, , strength. Hence, the overall order is:, IV > III > I > II, , 24. (d) Gold no. is a measure of protective power of a, lyophilic colloid., , H2 (g), , in, , CH3 — is an electron donating group, deceases acid, , 1 d[D], d dt, , amount of a sol depends upon the valency of flocculating, ion., , 1, 2, , nuclei, , nitro group exert electron withdrawing effect on acidity., , cC dD, , 23. (c) The amount of electrolyte required to coagulate a fixed, , 25. (b), , S, , withdrawing resonance effect, increases acidity of phenol, the most. This is followed by meta nitrophenol in which, , Conjugate base, , 22. (c) For a first order reaction, kt, , k, , is, , 2NH3, , d[N 2 ], dt, , Rate, , bases, , H2 O, , 21. (a) For any general reaction,, , 1 d[A], a dt, , of, , Cl ., , Conjugate acid, , Rate, , of, , Amount of energy released, , conjugated acids. Conjugate acid of OH is H 2 O which, , order, , Number, , A 4, Z 1, , R, , 6.02 10 0.235, 6.02 1020, 235, , 1, K12, , 19. (c) Relative strength of bases can be shown by their, is a, , A 4, Z 1, , Q, , 23, , 1, K12, , K2, , A, Z 1, , P, , CH CH3, , alc. KOH, , Cl2, 400 600 C, , C Na, , CH3CH2CH CH2, CH2, , CH CH2Cl, , It is known as allylic substitution reaction., 37. (c) CH 2 — CH 2 CH3MgI, , O, , 1, H2, 2, , CH 2 — CH 2, |, |, CH3, OMgI

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58, , Chemistry, , CH3 — CH 2 — CH 2 — OH Mg, Pr opyl alcohol, , 38. (d) Starch, , Enzymes, , 39. (c) CH3COCH3, , 41. (c) Fats and oil jointly known as lipids which are the ester, of glycerol with high fatty acid., , I, OH, , 42. (a) Acetic acid is the chief constituent of vinegar and, hence its name (Latin: acetum = vinegar)., , Alcohol, CH3MgI, , Acetone, , 43. (a) Basically all the Azo dye are derivatives of aniline., , (CH3 )3 COH, tert Butylalcohol, , 44. (a) All amines react with mineral acids such as, , 40. (a) It is hydration of alkynes., CH3 — CH 2 — C, , CH, , Hg, H2O, , O, ||, CH3 — CH 2 — C— CH3, Butanone, , HCl, H2SO4 , HNO3 etc. to form salts which are soluble in, water., 45. (a) Pepsin is a protein., ,   

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Mock Test-5, , 59, , Mock Test-5, Test-5, Mock, 1., , 1.24 g P is present in 2.2 g ?, a. P4S3, b. P2S2, c. PS2, , 2., , The atomic weights of two elements A and B are 40 and, 80 respectively. If x g of A contains y atoms, how many, atoms are present in 2x g of B?, y, 2, c. y, , y, 4, d. 2y, , b., , The arrangement of X ions around A ion in solid AX is, given in the figure (not drawn to scale). If the radius of, , X is 250 pm, the radius of A is:, X, A, , a. 104 pm, c. 183 pm, 4., , b. 125 pm, d. 57 pm, , -, , 5., , 6., , 7., , rCl-, , 3, a, 2, , d. rCs+, , rCl-, , 9., , b. 52.9, d. 105.8, , Among the following, the species in which the oxidation, number of an element is 6, a. MnO4, , b. Cr(CN)36, , c. NiF62, , d. CrO2Cl2, , 10. An aqueous solution of 6.3 g oxalic acid dihydrate is made, up to 250 mL. The volume of 0.1 N NaOH required to, completely neutralise 10 mL of this solution is:, a. 40 mL, b. 20 mL, c. 10 mL, d. 4 mL, 11. The standard reduction potential values of three metallic, cations, X, Y, Z are 0.52 V,, 3.03 V and 1.18 V, respectively. The order of reducing power of the, corresponding metals is:, a. Y Z X, b. X Y Z, , CsCl crystallises in body centred cubic lattice. If ‗a‘ its, edge length, then which of the following expressions is, correct?, 3a, a. rCs+ rCl 3a, b. rCs+ rCl2, c. rCs+, , The most probable radius (in pm) for finding the electron, in He is:, a. 0.0, c. 26.5, , d. P2S4, , a., , 3., , 8., , 3a, , Two solutions A and B are separated by a semi-permeable, membrane. If the solvent flows from A to B, then, a. A is more concentrated than B., b. A is less concentrated than B., c. Both A and B have the same concentration., d. Both A and B get diluted., The molal elevation constant is the ratio of elevation in, boiling point to:, a. Molarity, b. Boiling point of pure liquid, c. Mole fraction of solute, d. Molality of solution, An atom has 26 electrons and its atomic weight is 56. The, number of neutrons in the nucleus of the atom will be:, a. 26, b. 30, c. 36, d. 56, , c. Z Y X, , d. Z X Y, , 12. The gas X at 1 atm is bubbled through a solution, containing a mixture of 1 M Y and 1 M Z at 25 C . If, the order of reduction potential is Z Y X, then, a. Y will oxidise X and not Z, b. Y will oxidise Z and not X, c. Y will oxidise both X and Z, d. Y will reduce both X and Z, 13. For the electrochemical cell,, , (M / M ) || (X | X),E (M / M) 0.44V and, E (X / X ) 0.33V. From this data one can deduce that, a. M X, , M, , b. M, , X, , c. Ecell, , 0.77V, , d. Ecell, , X is the spontaneous reaction, , M X is the spontaneous reaction, 0.77V, , 14. The correct order of equivalent conductance at infinite, dilution of LiCl, NaCl and KCl is, a. LiCl, , NaCl KCl, , b. KCl, , NaCl LiCl, , c. NaCl, , KCl LiCl, , d. LiCl, , KCl, , NaCl

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60, , Chemistry, , 15. Which one among the following does not have the, hydrogen bond?, a. Phenol, b. Liquid NH3, c. Water, d. HCl, 16. On hybridisation of one s and one p-orbital get:, a. two mutually perpendicular orbitals, b. two orbitals at 180, c. four orbitals directed tetrahedrally, d. three orbitals in a plane, 17. The, , equilibrium, , H2 (g) I2 (g), , constant, , of, , the, , reaction, , 2HI(g) is 64. If the volume of the, , container is reduced to half of its original volume, the, value of equilibrium constant will be:, 1, a. 64, b., 64, c. 32, d. 16, 18. For the reaction, , PCl5 (g) the, , PCl3 (g) Cl2 (g), , value of K c at 250 C is 26. The value of K p at the, temperature will be:, a. 0.61, c. 0.83, , b. 0.52, d. 0.46, , 19. The solubility product constant K sp of, , Mg(OH)2 is, , 9.0 10 12. If a solution is 0.010 M with respect to Mg 2, ion, what is the maximum hydroxide ion concentration, which could be present without causing the precipitation, of Mg (OH)2 ., a. 1.5 10 7 M, , b. 3.0 10 7 M, , c. 1.5 10 5 M, , d. 3.0 10 5 M, , 20. If, B, , the, , Kb, , value, , in, , the, , BOH H c, , H2 O, , is, , hydrolysis, 1.0 10 6 ,, , reaction, then the, , hydrolysis constant of the salt would be:, a. 1.0 10, , 6, , c. 1.0 10, , 8, , 22. Which one of the following statements is incorrect about, order of reaction?, a. Order of reaction is determined experimentally., b. Order of reaction is equal to sum of the power of, concentration terms in differential rate law., c. It is not affected with stoichiometric coefficient of the, reactants., d. Oder cannot be fractional., 23. Commercial detergents mainly contain:, a. RCOONa, b. RONa, c. RSNa, , 24. Which one of the following is used for reviving the, exhausted permutit?, a. HCl solution, b. 10%CaCl2 solution, c. 10% MgCl2 solution, , Hvap, , 25., , 76, a. Ge 32, , c. C2 H6, , 21. The mechanism for the reaction is given below, 2P Q S T P Q R S (slow) P R T (fast)., , d. r, , k[P]2 1.73 10 5 M min, , CH, , 78, d. Se 34, , b. C6 H6, d. CH3OH, , O, , O, , a., , O, , O, , O, , O, , N, , N, , 1, , c. Se 77, 34, , 30. The most unlikely representation of resonance structures, of p-nitrophenoxide ion is:, , The rate law expression for the reaction is:, , k[A][R], , b. As 77, 33, , 29. Among the following compounds, the strongest acid is:, , d. 1.0 10, , c. r, , Find, , 76, 28. An isotope of Ge 32, is:, , a. HC, , k[P][Q], , 75Jmol 1K 1., , 27. If uranium (mass number 238 and atomic number 92), emits an, particle, the product has mass number and, atomic number., a. 236 and 92, b. 234 and 90, c. 238 and 90, d. 236 and 90, , 9, , b. r, , and Svap, , 30 kJ / mol, , 26. 2 moles of an ideal gas expanded isothermally and, reversibly from 1 L to 10 L at 300 K. what is the enthalpy, change?, a. 4.98 kJ, b. 11.47 kJ, c. 11.47 kJ, d. 0 kJ, , b. 1.0 10, , k[P]2 [Q], , d. 10% NaCl solution, , temperature of vapour, at one atmosphere pressure?, a. 400 K, b. 350 K, c. 298 K, d. 250 K, , 7, , a. r, , d. ROSO2 Na, , b., , O, , O, N, , c., , O, , O, , O, N, , d., , O

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Mock Test-5, , 61, , 31. The IUPAC name of the following compound., 1, , 4, , Cl – CH2 – CO – O – SO2, , NO2, , is?, a. chloroacetic 4-nitrobenzenesulphonic anhydride, b. 4-nitrobenzenesulphonicchloroethanoic anhydride, c. chloroethanoic 4-nitrobenzenesulphonic anhydride, d. chloroethanoic nitrobenzenesulphonic anhydride., 32. Write the IUPAC name of the compound., H, , 39. Dry heating of calcium acetate gives:, a. Acetaldehyde, b. Ethane, c. Acetic acid, d. Acetone, 40. Which of the following compound gives a ketone with, Grignard reagent?, a. Formaldehyde, b. Ethyl alcohol, c. Methyl cyanide, d. Methyl iodide, 41. Carbolic acid is:, , CONH2, , a. C6 H5CHO, , b. C6 H6, , c. C6 H5COOH, , d. C6 H5OH, , 42. The most acidic of the following is:, a. Cyclohexanamide, b. Carbamoyl benzene, c. Cyclohexane carboxamide, d. Benzamide, 33. The highest boiling point is expected for?, a. iso-butane, b. n-octane, c. 2, 2, 3, 3- tetramethyl butane, d. n-butane, 34. The number of structural and configurational isomers of a, bromo compound, C5H9 Br, formed by the addition of, HBr to 2- pentyne respectively, are?, a. 1 and 2, b. 2 and 4, c. 4 and 2, d. 2 and 1, 35. Chloroform on treatment with conc. HNO3 gives:, a. Nitromethane, b. Picric acid, c. Chloropicrin, d. Nitroethane, 36. Which chlorobenzene is heated with conc. NaOH solution, at about 575K under high pressure, the product is:, a. Phenol, b. n-Chlorophenol, c. o-and p-Chlorophenol, d. Benzene, 37. Coconut oil upon alkaline hydrolysis gives:, a. Glycol, b. Alcohol, c. Glycerol, d. Ethylene oxide, 38. In the commercial manufacture of ethyl alcohol from, starchy substances by fermentation method, which, enzymes stepwise complete the fermentation reaction?, a. Diastase, maltase and zymase, b. Maltase, zymase and invertase, c. Diastase, zymase and lactase, d. Diastase, invertase and zymase, , a. ClCH2COOH, , b. C6 H5COOH, , c. CD3COOH, , d. CH3CH2COOH, , 43. A nitrogen containing organic compound on heating with, chloroform and alcoholic KOH, evolved very unpleasant, smelling vapour. The compound could be:, a. N, N-dimethyl amine, b. Nitrobenzene, c. Aniline, d. Benzamide, 44. The reaction between a primary amine, chloroform and, few drops of alcoholic KOH is known as:, a. Cannizzaro reaction, b. Carbylamine reaction, c. Wurtz's reaction, d. Reimer–Tiemann reaction, 45. Glucose gives many reactions of aldehyde, because, a. It is hydrolysed to acetaldehyde., b. It is a polyhydroxy ketone., c. It is a cyclic aldehyde., d. It is a hemiacetal in equilibrium with its aldehyde form, in solution., Answers and Solutions, 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , a, , c, , a, , c, , b, , d, , b, , c, , d, , a, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , a, , a, , b, , b, , d, , b, , a, , a, , d, , c, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , b, , d, , a, , d, , a, , d, , b, , a, , d, , b, , 31., c, 41., b, , 32., c, 42., a, , 33., b, 43., c, , 34., b, 44., b, , 35., c, 45., d, , 36., a, , 37., c, , 38., a, , 39., d, , 40., c

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62, , 1., , Chemistry, , (a) Choice (a) is P4S3, , c, , 31 4, gm P is present in 220 gm P4S3, (124), , c2 3a 2, , 2., , x, 40, , (c) Number of moles of A, , x, Avogadro no., 40, , Number of atoms of A A, or, , Number of moles of B B, , 2x, Av. no., 80, , Number of atoms of B, , 2, 40 y, Av. no., 80 Av. no., 3., , y, , r (A ), , r (A ), r (X ), , 0.414, , 0.414, , (c) In CsCl,Cl lies at corners of simple cube and Cs at, the body centre. Hence, along the body diagonal, Cs and, , Cl touch each other so rCs, , rCl, , G, H, , E, , a, , Body centred cubic unit cell, FD, , In, , b, , AFD,, , a, , a, , 2, , A, , 2a, , D, , a, , 2, , 2a, , 2r, , 2, , 3, a, 4, , 3, a, 2, , (b) Solvent moves from higher concentration of solvent, (less concentrated solution) to lower concentration of, solvent (highly concentrated solution) due to osmosis., , 6., , (d), , Tb, , 7., , (b), N, , 8., , Kbm, Tb / m, , 26, , X56 A, , A E, , rmp, , 9., , P N, 56 26, , Z N, , E N, , 30, , (c) Most probable radius, , a0 / Z, , 52.9 pm. For helium ion, Z = 2., , 52.9, 2, , 26.45pm., , (d) In MnO4 , oxidation sate of Mn is, , 7, , In Cr(CN)36 , oxidation sate of Cr is, , 3, , 4 oxidation sate., , In CrO2Cl2 , oxidation sate of Cr is, , 6., , 10. (a) Oxalic acid dehydrate H2C2O4 . 2H2O : mw, dibasic acid, hence, Equivalent weight 63, 6.3 1000, Normality, 63 250, N1V1 N2 V2, , 0.1 V1, C, , b, , Calculation of r, In EDF,, 2, , 2r, B, , r, 2r, F r C, , a, , rCl, , In NiF , Ni is in, , 0.414 r(X ), , 2, , 3a, 4, , 2, 6, , 0.414 250 pm 103.5pm 104 pm, 4., , Hence, rCs, , Where a 0, , (a) Given arrangement represents octahedral void and for, this, , r (cation), r (cation), , r, , Kb, , 2x, 80, , ( 2a ), , 2, , 5., y (say), , 40 y, Avogadro no., , x, , a, , 2, , 4r, , 3a, , 2.2gm, , b, , 2, , c, 3a, AFD is an equilateral triangle., , As, , 1.24 gm P is present in, 220, 1.24, 124, , a, , 2, , 126 is a, , 0.4 N, , 0.4 10, , Hence, V1, , 40mL., , 11. (a) Lower the value of E stronger the reducing agent., Reducing power, Y(E, 3.03V) Z(E, 1.18V) X(E 0.52V)., 12. (a) Higher the value of reduction potential, stronger the, oxidising agent., E :Z Y X, Y will oxidise X but not Z., 13. (b) The spontaneous cell reaction is, X, , M, , M XE, , 0.11V

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Mock Test-5, , 63, , 14. (b) In LiCl, NaCl and KCl, anions are same. Cations have, same charge but different size. Smaller cations are more, heavily hydrated in aqueous solution giving larger, hydrated radius and thus smaller ionic speeds and, equivalent conductance., , 15. (d) HC1 does not from hydrogen bond. For formation of, hydrogen bond at least one hydrogen atom must be, bonded to one of the three most electronegative atom O, N, and F., 16. (b) Hydridisation of one ‗s‘ and one ‗p‘ orbtials gives two, hybrid, , s p, , orbitals, , oriented, , linearly, , at, , 180, , 2sp hybrid orbitals., , 17. (a) Change in volume of container will change the, concentrations of the reaction mixture but the equilibrium, constant remains unchanged., 18. (a) K p, , Kp, , Kc (RT), , n, , 19. (d) Mg(OH)2, , 26 1, 0.082 523, , 1, , Mg, , 0.61, , 2OH2, (2S), , S, , Ksp, , S 4S2, , Ksp, S 4, , S, , S2, , 9 10 12, .010 4, , 2.25 10, , 10, , 2.25 10, , 10, , 1.5 10 5 m/l, , 20. (c) For hydrolysis of B ;, , Kw, Kb, , KH, , 10, 10, , 14, 6, , 10 8 ., , 21. (b) The rate law expression for the reaction is, , r, , k[P][Q]., , U238, , 2, , He4 ( ), , 24. (d) 10% NaCl solution is used for reviving the exhaust, , Th 234, , mass number (A). Therefore,, , 30,000, 75, , 400 K, , 32, , Ge76 and 32 Ge77 are, , isotopes., 29. (d) Although alcohols are weaker acid than water, it is, stronger than ammonia and terminal alkynes., , O, , N, , 30. (b) O, , O, , 31. (c) Anhydrides derived from different monobasic acids, are named by citing first parts of the name of the two, acids (i.e., the parts preceding the term acid) in, alphabetical order., 4, , Cl – CH2 – CO – O – SO2, , NO2, , 32. (c) Primary amides are named by replacing the suffixes ―, oic acid‖, ―, ic acid‖ or ―, carboxylic acid‖ of the name of the, acid corresponding to the acyl group by ―, amide‖ or –, carboxamide. The substituents prefix corresponding to –, CONH2 is ‗carbamoyl‘ which is used, if the compound, has another principal group having priority for citation., 33. (b) Boiling point of alkane increases with molar mass., Among isomeric alkanes, branching decreases boiling, point. Therefore, n-octane has highest boiling point,, higher than 2, 2, 3, 3-tetramethyl-butane (an isomer of noctane)., , H3C, H, , C, , C — CH2 CH3 HBr, , C, , C2 H5, Br, , +, , H3C, H, , C, , C, , C2 H5, Br, , geometrical isomers, , H3C, Br, , permutit., Svap, , 90, , 28. (a) Isotopes have same atomic numbers (Z) but different, , 23. (a) Commercial detergents mainly contain salts of higher, fatty acids., , H vap, , H 0, , 27. (b) The nuclear reaction is:, , 34. (b) CH3 — C, , 22. (d) Order of a reaction can take any real value, i.e.,, negative, integer, fraction, etc., , 25. (a) T, , 0, , 1, , 26 (0.082 523), , Ksp, , T, , Process is isothermal,, , 92, , Equivalent conductance: KCl NaCl LiCl, , sp, , 26. (d) In case of reversible thermodynamic process:, H nCp T, , C, , C, , C2 H5, H, , +, , H3C, Br, , geometrical isomers, , C, , C, , H, C2 H5, , Therefore, two structural and four configurational, isomers.

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65, , Mock Test-1, , No. ………………….…………., , Test Booklet Code, , Mock Test NEET/Premedical, , AA, , This Test Booklet contain …. pages., Do not open this Test Booklet until you are asked to do so., Important Instructions:, 1., , The Answer Sheet is inside this Test Booklet. When you are directed to open the test Booklet, take out the Answer Sheet and fill in the particulars on, Side-1 and Side-2 carefully with Blue/Black Ballpoint pen only., , 2., , The test is of 3 hours duration and Test Booklet contains 180 questions. Each question carries 4 marks. For each incorrect response, one mark will be, deducted from the total score. The maximum marks are 720., , 3., , Use Blue/Black Ballpoint Pen only for writing particulars on this page/marking responses., , 4., , Rough work is to be done on the space provided for this purpose in the test booklet only., , 5., , One completion of the test, the candidate must hand over the Answer Sheet to the invigilator before leaving the Room/Hall. The candidates are allowed, to take away Test Booklet only with them., , 6., , The CODE for this test Booklet is AA. Make sure that the CODE printed on Side-2 of the Answer Sheet is the same as that on this test Booklet. In case, of discrepancy, the candidate should immediately report the matter to the Invigilator for replacement of both the Test Booklet and the Answer Sheet., , 7., , The candidate should ensure that the Answer Sheet is not folded. Do not make any stray make on the Answer Sheet. Do not write you Roll No., anywhere else except in the specified space in the Test Booklet/Answer Sheet., , 8., , Use of white fluid for correction is not permissible on the Answer Sheet., , 9., , Each candidate must show on demand his/her Admit Card to the Invigilator., , 10. No candidate, without special permission of the Superintendent or Invigilator, would leave his/her seat., 11. The candidates should not leave the Examination Hall without handing over their Answer Sheet to the Invigilator on duty and sign the Attendance Sheet, twice. Cases where a candidate has not signed the Attendance Sheet second time will be deemed not to have handed over the Answer Sheet and, dealt with as an unfair means case., 12. Use of Electronic/Manual Calculator is prohibited., 13. The Candidates are governed by all Rules and Regulations of the board with regard to their conduct in the Examination Hall. All case of unfair means, will be dealt with as per Rules and Regulations of the Board., 14. No part of the Test Booklet and Answer Sheet shall be detached under any circumstances., 15. The candidates will write the correct Test booklet code as given in the Test Booklet/Answer Sheet in the Attendance Sheet., , NOTE: It’s the mock test as per previous year paper; sometimes NEET changes the test paper pattern and marking scheme too., PAPER CONSISTS, Physics: 45, Chemistry: 45 and Biology: 90 Questions each, , Name of the Candidate (in Capital letters): ____________________________________________________________________________________________, Roll Number, , : In figures ______________________________________________________________________________________________________, : In words _______________________________________________________________________________________________________, , Centre of Examination (in Capital letters): __________________________________________________________________________________________, Candidate’s Signature: _________________________________________ Invigilator’s Signature: _______________________________________________, Facsimile Signature Stamp of Centre superintendent: ___________________________________________________________________________________

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Biology, , 66, , Mock Test-1, 1., , The two polypeptides of human insulin are linked together, by:, a. Hydrogen bonds, b. Phosphodiester bond, c. Covalent bond, d. Disulphide bridges, , 2., , Select incorrect statement w.r.t. the following group or, organisms and their characteristics., a. Chrysophyte – Includes diatoms and desmids, Planktonic, organism, b. Dinoflagellate – Mostly marine and photosynthetic, cell, wall has stiff cellulosic plate on outer surface, c. Euglenoids – Majority of them are fresh water, cell wall, is absent, d. Slime mould – Saprophytic motile spores with true, walls, , 3., , The coconut water from tender coconut represents:, a. Endocarp, b. Fleshy mesocarp, c. Free nuclear proembryo d. Free nuclear endosperm, , 4., , Select incorrect option w.r.t. viral disease in both plant, and animal., Plant disease, Animal disease, a. Leaf rolling, —, Mumps, b. Yellowing, —, Herpes, c. Vein clearing, —, Influenza, d. Damping off, —, Diphtheria, , 5., , Gametophyte of bryophyte is:, a. Green and vascular, b. Independent, multicellular, c. Dependent on sporophyte, d. Foliose in nature, , 6., , 7., , Which of the following features is not present in the, phylum – Arthropoda?, a. Chitinous exoskeleton, b. Metameric segmentation, c. Parapodia, d. Jointed appendages, , The leaf of Pinus is, a. Needle shaped, b. Compound leaf, c. Having veinlets, d. Non-cutinised, 9. Which of the following most appropriately describes, haemophilia?, a. Recessive gene disorder, b. X-linked recessive gene disorder, c. Chromosomal disorder, d. Dominant gene disorder, 10. Select correct option w.r.t. Rhizphora, (a) Grows in swampy area, (b) Pneumatophores are present of respiration, (c) Is halophyte, (d) Shows in situ germination of seed, a. All are correct, b. All are correct except (d), c. All are correct except (a) and (d), d. All are correct except (a), (c) and (d), 11. Stirred-tank bioreactors have been designed for:, a. availability of oxygen throughout the process, b. ensuring anaerobic conditions in the culture, c. purification of product, d. addition of preservatives to the product, 12. Name the chronic respiratory disorder caused mainly by, cigarette smoking:, a. Emphysema, b. Asthma, c. Respiratory acidosis, d. Respiratory alkalosis, 8., , 13. Which of the following is not a component of downstream, processing?, a. Preservation, b. Expression, c. Separation, d. Purification, , Select incorrect option w.r.t. given diagram., , 14. Which of the following restriction enzymes produces, blunt ends?, a. Xho I, b. Hind III, c. Sal I, d. Eco RV, , a. Heterosporous, b. Aquatic fern, c. Belongs to class Pteropsida, d. Gametophytic main plant body, , 15. Mitochondria and chloroplast are:, (a) semi-autonomous organelles., (b) formed by division of pre-existing organelles and they, contain DNA but lack protein synthesising machinery, Which one of the following options is correct?, a. Both (a) and (b) are correct, b. (b) is true but (a) is false, c. (a) is true but (b) is false, d. Both (a) and (b) are false

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67, , Mock Test-1, , 16. How many hot spots of biodiversity in the world have, been identified till date by Norman Myers?, a. 34, b. 43, c. 17, d. 25, 17. The primary producers of the deep-sea hydrothermal vent, ecosystem are:, a. Blue-green algae, b. Coral reefs, c. Green algae, d. Chemosynthetic bacteria, 18. Which of the following is correct for r-selected species?, a. Small number of progeny with small size, b. Small number of progeny with large size, c. Large number of progeny with small size, d. Large number of progeny with large size, 19. Photosensitive compound in human eye is made up of:, a. Guanosine and Retinol, b. Opsin and Retinal, c. Opsin and Retinol, d. Transduction and Retinene, 20. Which of the following is correctly matched?, a. Parthenium hysterophorus – Threat to biodiversity, b. Stratification, – Population, c. Aerenchyma, – Opuntia, d. Age pyramid, – Biome, 21. Red list contains data or information on:, a. threatened species, b. marine vertebrates only, c. all economically important plants, d. plants whose products are in international trade, , 26. Microtubules are the constituents of:, a. Cilia, Flagella and Peroxisomes, b. Spindle fibres, Centrioles and Cilia, c. Centrioles, Spindle fibres and Chromatin, d. Centrosome, Nucleosome and Centrioles, 27. Which one of the following statements is wrong?, a. Agar-agar is obtained from Gelidium and Gracilaria, b. Laminaria and Sargassum are used as food, c. Algae increase the level of dissolved oxygen in the, immediate environment, d. Algin is obtained from red algae, and carrageenan from, brown algae., 28. The term ‘polyadelphous’ is related to, a. Corolla, b. Calyx, c. Gynoecium, d. Androecium, 29. How many plants among Indigofera, Sesbania, Salvia,, Allium, Aloe, mustard, groundnut, radish, gram and turnip, have stamens with different lengths in their flowers?, a. Five, b. Six, c. Three, d. Four, 30. Asthma may be attributed to:, a. bacterial infection of the lungs, b. allergic reaction of the mast cells in the lungs, c. inflammation of the trachea, d. accumulation of fluid in the lungs, 31. Free-central placentation is found in:, a. Brassica, b. Citrus, c. Dianthus, , d. Argemone, , 22. Which one of the following is wrong for fungi?, a. They are heterotrophic, b. They are both unicellular and multicellular, c. They are eukaryotic, d. All fungi possess a purely cellulosic cell wall, , 32. Cortex is the region found between:, a. Endodermis and pith, b. Endodermis and vascular bundle, c. Epidermis and stele, d. Pericycle and endodermis, , 23. Which of the following is required as inducer(s) for the, expression of Lac operon?, a. glucose, b. galactose, c. lactose, d. lactose and galactose, , 33. The Avena curvature is used for bioassay of:, a. ABA, b. GA3, c. IAA, d. Ethylene, , 24. Select the wrong statement:, a. Diatoms are chief producers in the oceans, b. Diatoms are microscopic and float passively in water, c. The walls of diatoms are easily destructible, d. ‘Diatomaceous earth’ is formed by the cell walls of, diatoms., 25. The label of a herbarium sheet does not carry information, on:, a. local names, b. height of the plant, c. date of collection, d. name of collector, , 34. Some bacterial cells were fixed for microscopic observation., A certain labelled structure X was observed on most, occasions at the cell membrane., X, , In the given illustration, label X represents, a. nucleoid, b. plasmids c. ribosomes d. mesosome

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Biology, , 68, , 35. Which organism is most appropriately represented by X?, X, DNA replication observed, , Absence of nucleus, , Presence of plasmids, and mesosomes, , a. Bacterium, , b. Animal, , c. Plant, , d. Virus, , 36. The genetic material in prokaryotes is not organised into a, nucleus. It lies without a well defined boundary in the, cytoplasm. The genetic material inside a bacterial cell is, present as a, a. nucleus, b. nucleoid, c. nucleolus, d. nucleosome, 37. One of the reasons for variations in organisms is the, crossover of genetic material during meiosis. The crossing, over in meiosis occurs during, a. prophase I, b. anaphase I, c. prophase II, d. anaphase II, 38. Centromere is the constricted region of the chromosome, where the two sister chromatids are joined to each other in, meiosis, the sister chromatids separate from the, centrometre during, a. anaphase I, b. anaphase II, c. metaphase I, d. metaphase II, 39. Best material for the study of mitosis is, a. Root tip, b. Primary gametocyte, c. Spore mother cell, d. Zygote, 40. Select the incorrect statement:, a. FSH stimulates the sertoli cells which help in, spermiogenesis., b. LH triggers ovulation in ovary, c. LH and FSH decrease gradually during the follicular, phase., d. LH triggers secretion of androgens from the Leydig, cells., 41. Chromosomes are very thin, fine, thread-like structures, and their morphology can be studied when they are highly, condensed. In which cell cycle stage are suitable, condensed chromosomes found so that their morphology, can be studied?, a. Prophase, b. Metaphase, c. Interphase, d. Telophase, 42. Which of the following is not a feature of the plasmids?, a. Independent replication, b. Circular structure, c. Transferable, d. Single-stranded, , 43. The main feature of the cell cycle is the equal division of, genetic material between two daughter cells. In the cell, cycle, the separation of sister chromatids begins during, the, a. Metaphase, b. Interphase, c. Anaphase, d. Prophase, 44. In higher vertebrates, the immune system can distinguish, self-cells and non-self. If this property is lost due to genetic, abnormality and it attacks self-cells, then it leads to:, a. Allergic response, b. Graft rejection, c. Auto-immune disease, d. Active immunity, 45. Which one of the following statements in not correct?, a. In potato, banana and ginger, the plantlets arise from, the intermodes present in the modified stem., b. Water hyacinth, growing in the standing water, drains, oxygen from water that leads to the death of fishes., c. Offspring produced by the asexual reproduction are, called clone, d. Microscopic, motile asexual reproductive structures are, called zoospores., 46. The part of nephron involved in active reabsorption of, sodium is:, a. Bowman’s capsule, b. Descending limb of Henle’s loop, c. Distal convoluted tubule, d. Proximal convoluted tubule, 47. Match the terms in Column I with their description in, Column II and choose the correct option:, Column I, Column II, (A) Dominance, , 1. Many genes govern a single, character, (B) Codominance, 2. In a heterozygous organism, only one allele expresses, itself, (C) Pleiotropy, 3. In a heterozygous organism, both alleles express, themselves fully, (D) Polygenic, 4. A single gene influences, many characters inheritance, a. A-3, B-1, C-4, D-3, b. A-2, B-3, C-4, D-1, c. A-4, B-1, C-3, D-3, d. A-4, B-3, C-1, D-2, 48. Which of the flowing is incorrect regarding vasectomy?, a. Vasa deferentia is cut and tied, b. Irreversible sterility, c. No sperm occurs in seminal fluid, d. No sperm occurs in epididymis

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69, , Mock Test-1, , 49. Which of the following approaches does not give the, defined action of contraceptive?, a. Barrier methods Prevent fertilization, Increase phagocytosis of, b. Intra uterine, devices, sperms, suppress sperm, motility and fertilising, capacity of sperms, Prevent/retard entry of, c. Hormonal, contraceptives, sperms, prevent ovulation, and fertilisation, Vasectomy, Prevents, spermatogenesis, d., 50. Which of the following depicts the correct pathway to, transport of sperms?, a. Rete testis → Vas deferens → Efferent ductules →, Epididymis, b. Efferent ductules → Rete testis → Vas deferens →, Epididymis, c. Rete testis → Efferent ductules → Epididymis → Vas, deferens, d. Rete testis → Epididymis → Efferent ductules → Vas, deferens, 51. Match Column-I with Column-II and select the correct, option using the codes given below:, Column I, Column II, (A) Mons pubis, 1. Embryo formation, (B) Antrum, 2. Sperm, (C) Trophectoderm, 3. Female external genitalia, (D) Nebenkern, 4. Graafian follicle, a. A-3, B-1, C-4, D-2, c. A-3, B-4, C-2, D-1, , b. A-1, B-4, C-3, D-2, d. A-3, B-4, C-1, D-2, , 52. Several hormones like hCG, hPL, estrange, progesterone, are produced by, a. Fallopian tube, b. Pituitary, c. Ovary, d. Placenta, , 56. Which of the following is not a stem modification?, a. Pitcher of Nepenthes, b. Thorns of citrus, c. Tendrils of cucumber, d. Flattened structures of Opuntia, 57. Which of the following is the correct sequence of events, in the origin of life?, I. Formation of protobionts, II. Synthesis of organic monomers, III. Synthesis of organic polymers, IV. Formation of DNA-based genetic systems, a. II, III, I, IV, b. II, III, IV, I, c. I, II, III, IV, d. I, III, II, IV, 58. A molecule that can act as a genetic material must fulfill, the traits given below, except:, a. It should be unstable structurally and chemically, b. It should provide the scope for slow changes that are, required for evolution, c. It should be able to express itself in the form of, ‘Mendelian characters’, d. It should be able to generate its replica, 59. DNA-dependent RNA polymerase catalyses transcription, on one strand of the DNA which is called the, a. Alpha strand, b. Antistrand, c. Template strand, d. Coding strand, 60. Select the correct statements:, a. Gymnosperms are both homosporous and, heterosporous, b. Salvinia, Ginkgo and Pinus all are gymnosperms, c. Sequoia is one of the tallest trees, d. The leaves of gymnosperms are not well adapted to, extremes of climate, , 54. Antivenom injection contains preformed antibodies while, polio drops that are administered into the body contain:, a. Activated pathogens, b. Harvested antibodies, c. Gamma globulin, d. Attenuated pathogens, , 61. Which of the following is correct regarding AIDS, causative agent HIV?, a. HIV is unenveloped retrovirus, b. HIV does not escape but attacks the acquired immune, response, c. HIV is enveloped virus containing one molecule of, single-stranded RNA and one molecule of reverse, transcriptase., d. HIV is enveloped virus that contains two identical, molecules of single-stranded RNA and two molecules, of reverse transcriptase., , 55. In Hardy-Weinberg equation, the frequency, heterozygous individual is represented by:, a. pq, b. q2, c. p2, d. 2pq, , 62. Among the following edible fishes, which one is a marine, fish having rich source of omega-3 fatty acids?, a. Mrigala, b. Mackerel c. Mystus, d. Mangur, , 53. If a colour-blind man marries a woman who is, homozygous for normal colour vision, the probability of, their son being colour-blind is:, a. 0.75, b. 1, c. 0, d. 0.5, , of

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Biology, , 70, , 63. Match Column-I with Column-II and select the correct, option using the codes given below:, Column I, Column II, (A) Citric acid, 1. Trichoderma, (B) Cyclosporin, 2. Clostridium, (C) Statins, 3. Aspergillus, (D) Butyric acid, 4. Monascus, a. A-1, B-4, C-2, D-3, b. A-3, B-4, C-1, D-2, c. A-3, B-1, C-2, D-4, d. A-3, B-1, C-4, D-2, 64. Which type of tissue correctly matches with its location?, Tissue, Location, a. Smooth muscle, Wall of intestine, b. Areolar tissue, Tendons, c. Transitional epithelium, Tip of nose, d. Cuboidal epithelium, Lining of stomach, 65. The principle of competitive exclusion was stated by:, a. MacArthur, b. Verhulst and Pearl, c. C. Darwin, d. G.F. Gause, 66. Which of the following characteristic features always, holds true for the corresponding group of animals?, Cartilaginous endoskeleton, Chondrichthyes, a., Viviparous, Mammalia, b., Possess a mouth with an, Chordata, c., upper and a lower jaw, 3 – chambered heart with one Reptilia, d., incompletely divided, 67. A lake which is rich in organic waste may result in:, a. Increased population of fish due to lots of nutrients, b. Mortality of fish due to lack of oxygen, c. Increased population of aquatic organisms due to, minerals, d. Drying of the lake due to algal bloom, 68. Following are the two statements regarding the origin of, life:, (a) The earliest organisms that appeared on the earth were, non-green and presumable anaerobes., (b) The first autotrophic organisms were the chemoautotrophs that never released oxygen. Of the above, statements which one of the following options is, correct?, a. (a) is correct but (b) is false, b. (b) is correct but (a) is false, c. Both (a) and (b) are correct, d. Both (a) and (b) are false, , 69. Which of the following sets of diseases is caused by, bacteria?, a. Tetanus and mumps, b. Herpes and influenza, c. Cholera and tetanus, d. Typhoid and smallpox, 70. Match Column-I with Column-II for housefly, classification and select the correct option using the codes, given below:, Column I, (A) Family, (B) Order, (C) Class, (D) Phylum, a. A-4, B-3, C-2, D-1, c. A-3, B-1, C-4, D-2, , Column II, 1. Diptera, 2. Arthropoda, 3. Muscidae, 4. Insecta, b. A-4, B-2, C-1, D-3, d. A-3, B-2, C-4, D-1, , 71. Choose the correct statement., a. All reptiles have a three-chambered heart., b. All pisces have gills covered by an operculum, c. All mammals are viviparous, d. All cyclostomes do not possess jaws and paired fins, 72. Study the four statements (A-D) given below and select, the two correct ones out of them:, (A) Definition of biological species was given by Ernst, Mayr, (B) Photoperiod does not affect reproduction in plants, (C) Binomial nomenclature system was given by R.H., Whittaker, (D) In unicellular organisms, reproduction is synonymous, with growth., a. A and D, b. A and B, c. B and C, d. C and D, 73. When does the growth rate of a population following the, logistic model equal zero? The logistic model is given as, dN/dt = rN(1-N/K):, a. When N/K is exactly one., b. When N nears the carrying capacity of the habitat., c. When N/K equals zero., d. When death rate is greater than birth rate., 74. Smooth muscles are:a. Involuntary, cylindrical, striated, b. Voluntary, spindle-shaped, uninucleate, c. Involuntary, fusiform, non-striated, d. Voluntary, multinucleate, cylindrical

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Mock Test-1, , 75. Oxidative phosphorylation is, a. Addition of phosphate group to ATP, b. formation of ATP by energy released from electrons, removed during substrate oxidation., c. Formation of ATP by transfer of phosphate group from, a substrate to ADP, d. Oxidation of phosphate group in ATP, 76. Which of the following is the least likely to be involved in, stabilizing the three-dimensional folding of most proteins?, a. Hydrophobic interaction b. Ester bonds, c. Hydrogen bonds, d. Electrostatic interaction, 77. Which of the following features is true for both, chloroplasts and the mitochondria?, a. Presence of ribosomes, b. Presence of carotenoid, c. Presence of chlorophyll, d. Presence of particles, 78. When cell has stalled DNA replication fork, which, checkpoint should be predominantly activated?, a. M, b. Both G2/M and M, c. G1/S, d. G2/M, 79. Match the stages of meiosis in Column-I to their, characteristic features in Column-II and select the correct, option using the codes given below:, Column I, Column II, (A) Pachytene, 1. Pairing of homologous, chromosomes, (B) Metaphase-I, 2. Terminalisation, of, chiasmata, (C) Diakinesis, 3. Crossing over takes place, (D) Zygotene, 4. Chromosomes align at, equatorial plate, a. A-2, B-4, C-3, D-1, b. A-4, B-3, C-2, D-1, c. A-3, B-4, C-2, D-1, d. A-1, B-4, C-2, D-3, 80. Nomenclature is governed by certain universal rules., Which one of the following is contrary to the rules of, nomenclature?, a. Biological names can be written in any language, b. The first word in a biological name represents the, genus name, and the second is a specific epithet., c. The names are written in Latin and are italicised., d. When written by hand, the names are to be underlined., 81. Down’s syndrome is a very common genetic disorder, affecting one out of every 700 live births. Which of the, following symptoms is not characteristic of Down’s, syndrome?, a. Folded skin of the upper eyelids, b. Sterile and degenerated sex organs, c. Broad skull with widely spaced nostrils, d. Stubby hands with simian creases on plans, , 71, , 82. Water vapour comes out from the plant leaf through the, stomatal opening. Through the same stomatal opening, carbon dioxide diffuses into the plant during, photosynthesis. Reason out the above statements using, one of following options:, a. Both processes cannot happen simultaneously., b. Both processes can happen together because the, diffusion coefficient of water and CO2 is different., c. The above processes happen only during night time., d. One process occurs during day time and the other at, night., 83. During genetic manipulation, the desired gene is inserted, into the vector by cutting the vector at specific sites for, gene insertion. The enzyme used for this purpose is:, a. restriction endonuclease b. DNA polymerase, c. nuclease, d. ligase, 84. Which of the following organisms is used in the genetic, engineering of plants?, a. Acetobacter, b. Lactobacillus, c. Agrobacterium, d. Saccharomyces, 85. If the amount of DNA sample isolated is low, then which, process is used for the amplification of DNA?, a. PCR technique, b. DNA microarrays, c. DNA electrophoresis, d. Southern blot techniques, 86. Which of the following is wrongly matched in the given, table?, Microbe, Product, Application, Cyclosporin A Immunosuppressi, a. Trichoderma, polysporum, ve drug, Statins, Lowering of, b Monascus, purpureus, blood cholesterol, c. Streptococcus Streptokinase Removal of clot, from vessel, Lipase, Removal of oil, d Clostridium, butylicum, stains, 87. Bt cotton is a genetically modified cotton variety, containing genes from the bacteria called Bacillus, thuringiensis (Bt). Which of the following statements is, incorrect regarding Bt cotton?, a. It is resistant to the attack of crop pests., b. It helps in decreasing the use of pesticides on the field, c. It can cause genetic pollution in the wild cotton variety., d. It can increase the population of beneficial insects on, the field.

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Biology, , 72, , 88. Keith Campbell and I an Wilmut were the first scientists, to clone a mammal at the Rosalin Institute, Edinburgh,, , of, , bryophyte, , is, , independent,, , 5., , (b) Gametophyte, multicellular., , 6., , c. Sheep, d. Deer, 89. Production of insulin using bacteria has helped diabetic, , (c) In Polychaeta, usually biramous, muscular, lateral, projections of the body, paired and extending from the, body segments, more or less compressed laterally, and, bearing setae; in free-swimming forms they are used for, locomotion, and in sessile forms to fan water., , 7., , (d) Gametophytic main plant body, , patients throughout the world. Which of the following, , 8., , (a) Needle shaped. Typical short shoots in Pinus, monophylla have one single needle leaf preceded by some, scale leaves and are inserted in the axils of scaly long, shoot leaves., , 9., , (b) X-linked recessive gene disorder, , Scotland. It was a major breakthrough in the field of, reproduction, as for the first time, a mammal was born, without the normal process of mating and fertilisation., Which was the first mammal to be cloned in the world?, a. Cow, b. Goat, , methods is used for producing insulin from bacteria?, a. Recombinant DNA technology, b. Polymerase chain reaction, c. Organ transplantation, d. Enzymatic digestion, 90. For which of the following diseases does the transgenic, model not exist?, a. Malaria, c. Cystic fibrosis, Answers and Solutions, 1., , 2., , 3., , 4., , b. Cancer, d. Rheumatoid arthritis, , 5., , 6., , 7., , 8., , 9., , 10., , d, , d, , d, , d, , b, , c, , d, , a, , b, , a, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , a, , a, , b, , d, , c, , a, , d, , c, , b, , a, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , a, , d, , c, , c, , b, , b, , d, , d, , d, , b, , 31., , 32., , 33., , 34, , 35., , 36., , 37., , 38., , 39., , 40., , c, , c, , c, , d, , a, , b, , a, , b, , a, , c, , 41., , 42., , 43., , 44., , 45., , 46., , 47, , 48., , 49., , 50., , b, , d, , c, , c, , a, , d, , b, , d, , d, , c, , 51., , 52., , 53., , 54., , 55., , 56., , 57., , 58., , 59., , 60, , d, , d, , c, , d, , d, , a, , a, , a, , c, , c, , 61., , 62., , 63., , 64., , 65., , 66., , 67., , 68., , 69., , 70., , d, , b, , d, , a, , d, , a, , b, , c, , c, , c, , 71., , 72., , 73., , 74., , 75., , 76., , 77., , 78., , 79., , 80., , d, , a, , a, , c, , b, , b, , a, , c, , c, , a, , 81., , 82., , 83., , 84., , 85., , 86., , 87., , 88., , 89., , 90., , b, , b, , a, , c, , a, , d, , d, , c, , a, , a, , 10. (a) (All are correct), (a) Grows in swampy area, (b) Pneumatophores are present of respiration, (c) Is halophyte, (d) Shows in situ germination of seed, 11. (a) Availability of oxygen throughout the process., 12. (a) The chronic respiratory disorder caused mainly, emphysema by cigarette smoking., 13. (b) Emphysema a condition in which air is abnormally, present within the body tissues., 14. (d) EcoRV (pronounced "eco R five") is a type II, restriction endonuclease isolated from certain strains of, Escherichia coli. In molecular biology, it is a commonly, used restriction enzyme. It creates blunt ends., 15. (c) Semi-autonomous organelles is true but formed by, division of pre-existing organelles and they contain DNA, but lack protein synthesising machinery is false., 16. (a) 34 hotspots of biodiversity in the world have been, identified till date by Norman Myers., 17. (d) Chemosynthetic bacteria, , 1., , (d) The two polyopeptides of human insulin are linked, together by disulphide bridges., , 2., , (d) Slime mould – Saprophytic motile spores with true, walls., , 3., , (d) The coconut water from tender coconut represents free, nuclear endosperm., , 21. (a) Threatened species, , (d) Damping off — Diptheria, , 22. (d) All fungi possess a purely cellulosic cell wall, , 18. (c) Large number of progeny with small size, 19. (b) Photosensitive compound in human eye is made up of, opsin and retinal., 20. (a) Parthenium hysterophorus–Threat to biodiversity, , 4.

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73, , Mock Test-1, , 23. (c) Lactose is required as inducer for the expression of, Lac operon., , 45. (a) In potato, banana and ginger, the plantlets arise from, the internodes present in the modified stem., , 24. (c) The walls of diatoms are easily destructible., , 46. (d) Proximal convoluted tubule is the part of nephron., involved in active reabsorption of sodium., , 25. (b) Height of the plant, 26. (b) Microtubules are the constituents of Spindle fibres,, Centrioles and Cilia., 27. (d) Algin is obtained from red algae, and carrageenan, from brown algae., 28. (d) Androecium, the stamens of a flower collectively,, united by the filaments into three or more sets or bundles,, having stamens joined by their filaments into a number of, clusters origin of polyadelphous from classical Greek, polyadelphous., 29. (d) Four, 30. (b) Asthma may be attributed to allergic reaction of the, mast cells in the lungs., 31. (c) Free-central placentation is found in dianthus., 32. (c) Cortex is the region found between epidermis and, stele., 33. (c) The Avena curvature is used for bioassay of IAA., 34. (d) Mesosome, 35. (a) Bacterium, 36. (b) The genetic material inside a bacterial cell is present, as a nucleoid., 37. (a) The crossing over in meiosis occurs during prophase l., , 38. (b) In meiosis, the sister chromatids separate from the, centrometre during anaphase II., , 47. (b) A-2, B-3, C-4, D-1, 48. (d) No sperm occurs in epididymis, 49. (d) Vesectomy → Prevents spermatogenesis, 50. (c) Rete testis → Efferent ductules → Epididymis → Vas, deferens, 51. (d) A-3, B-4, C-1, D-2, 52. (d) Several hormones like hCG, hPL, oestrogen,, progesterone are produced by placenta., 53. (c) 0, 54. (d) Antivenom injection contains preformed antibodies, while polio drops that are administered into the body, contain attenuated pathogens., 55. (d) 2pq, 56. (a) Pitcher of Nepenthes, 57. (a) (II, III, I, IV), II. Synthesis of organic monomers, III. Synthesis of organic polymers, I. Formation of protobionts, IV. Formation of DNA-based genetic systems, 58. (a) It should be unstable structurally and chemically, 59. (c) DNA-dependent RNA polymerase catalyses, transcription on one strand of the DNA which is called the, template strand., 60. (c) Sequoia is one of the tallest trees., , 39. (a) Best material for the study of mitosis is root tip., 40. (c) LH and FSH decrease gradually during the follicular, phase., 41. (b) Metaphase cell cycle stage are suitable condensed, chromosomes found so that their morphology can be, studied., 42. (d) Single-stranded, 43. (c) In the cell cycle, the separation of sister chromatids, begins during the anaphase., 44. (c) An autoimmune disease is a condition in which your, immune system mistakenly attacks your body., , 61. (d) HIV is enveloped virus that contains two identical, molecules of single-stranded RNA and two molecules of, reverse transcriptase., 62. (b) Mackerel edible fishes, which one is a marine fish, having rich source of omega-3 fatty acids., 63. (d) A-3, B-1, C-4, D-2, 64. (a) Tissue, Smooth muscle, , Location, Wall of intestine, , 65. (d) The principle of competitive exclusion was stated by, G.F. Gause.

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Biology, , 74, , 66. (a) Cartilaginous endoskeleton → Chondrichthyes, , 79. (c) A-3, B-4, C-2, D-1, , 67. (b) Mortality of fish due to lack of oxygen., , 80. (a) Biological names can be written in any language, , 68. (c) Both: The earliest organisms that appeared on the, Earth were non-green and presumable anaerobes. And the, first autotrophic organisms were the chemoautotrophs that, never released oxygen are correct., , 81. (b) Sterile and degenerated sex organs, , 69. (c) Cholera and tetanus are caused by bacteria., 70. (c) A-3, B-1, C-4, D-2, 71. (d) All cyclostomes do not possess jaws and paired fins., 72. (a) (a and d), (a) Definition of biological species was given by Ernst, Mayr, (d) In unicellular organisms, reproduction is synonymous, with growth., 73. (a) When N/K is exactly one., 74. (c) Involuntary, fusiform, non-striated are smooth muscle., , 82. (b) Both processes can happen together because the, diffusion coefficient of water and CO2 is different., 83. (a) The enzyme used for this purpose is restriction, endonuclease During genetic manipulation, the desired, gene is inserted into the vector by cutting the vector at, specific sites for gene insertion., 84. (c) Agrobacterium is used in the genetic engineering of, plants., 85. (a) If the amount of DNA sample isolated is low, then, PCR technique is used for the amplification of DNA., 86. (d), Microbe, Clostridium, butylicum, , Product, Lipase, , Application, Removal of oil, stains, , 75. (b) Oxidative phosphorylation is formation of ATP by, energy released from electrons removed during substrate, oxidation., 76. (b) Ester bonds is the least likely to be involved in, stabilising the three-dimensional folding of most proteins., , 87. (d) It can increase the population of beneficial insects on, the field., , 77. (a) Presence of ribosomes, , 90. (a) Malaria, , 78. (c) G1/S, , 88. (c) Sheep, 89. (a) Recombinant DNA technology

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75, , Mock Test-2, , Mock Test-2, 1., , Aquaculture does not include, a. Pisces, b. Prawns, c. Silkworm, d. Shell fishery, , 2., , Haematology is the study of:, a. Bone, b. Blood, c. Neuron, d. Cartilage, Organic evolution would have not been taken place:, a. If individuals in a population did not show genetic, variations, b. If individuals did not inherit characters acquired during their, life to their off-springs, c. If somatic variations did not inherit, d. If somatic variations were not transferred to genetic, variations, The process of evolution:, a. Is a continuous process, b. Is a discontinuous process, c. Was continuous in beginning but discontinuous now, d. Was discontinuous in beginning but continuous now, , 3., , 4., , 5., , There are several ways of looking at living thing, one, which is at the molecular level and analytical level with, regard to life could vary nearly come to:, a. Result of Newtonian laws, b. Matter energy interaction, c. Matter velocity relationship, d. Physical expression of moment of mass, , 6., , Infective nature of tobacco mosaic disease was discovered, by:, a. Mayer, b. Ivanovsky, c. Bawden, d. Green, , 7., , 8., , Infective portion of a virus is nucleic acid, this was, discovered by, a. de-Herelle, b. Hershey and Chase, c. Stanley, d. Ivanovsky, Alary muscle is associated with:, a. Heart and circulation, b. Malpighian tubule and excretion, c. Trachea and respiration, d. None of these, , Organ of mastication in cockroach is:, a. Labrum, b. Labium, c. Mandibles, d. Maxilla, 10. Commonest mode of asexual reproduction in bacteria is:, a. Binary fission, b. Budding, c. Sexual conjugation, d. Sporulation, 9., , 11. In nitrification, nitrosomonas bacteria converts:, a. Nitrate to Nitrite, b. Ammonia to Nitrite, c. Chloroplasts, d. Nitrate to N 2, 12. In Bougainvillea large coloured structures area. Bracts, b. Stamens, c. Petals, d. Sepals, 13. Zigzag development of inflorescence axis is an example, of:, a. Umbel, b. Helicoid cyme, c. Scorpioid cyme, d. Verticillaster, 14. Young fleshy inflorescence is edible in:, a. Cauliflower, b. Bombax, c. Aconitum, d. Trapa, 15. Sclerenchymatous hypodermis is found in:, a. Monocot roots, b. Monocot stems, c. Dicot stems, d. Gymnosperm stems, 16. Polyarch vascular bundles are usually found in, a. Monocot roots, b. Dicot roots, c. Monocot stems, d. Dicot stems, 17. Bilirubin is a by-product of no use, so it is eliminated, partly with the stools as such, Accumulated bilirubin, causes a dangerous toxicity referred to as:, a. Cri-du-chat syndrome, b. Crigler-Najjar syndrome, c. Down’s syndrome, d. Cretuzfeldt-Jakob syndrome

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Biology, , 76, , 18. A variety of cells are present in the areolar tissue. In the, list of cells which are not found in the said connective, tissue are:, a. Myeloblasts, b. Fibroblasts, c. Neutrophils, d. Macrophages, 19. Who proposed the fluid-mosaic model of membrane, structure?, a. Davson and Denielli, b. Robertson, c. Seifriz, d. Singer and Nicolson, 20. Which cell organelle is essential for photorespiration?, a. Endoplasmic reticulum, b. Dictyosome, c. Peroxisome, d. Glyoxysome, 21. In the meiotic division four daughter cells are produced by, two successive divisions in which, a. First division is equational and second is reductional, b. First division is reductional and second is equational, c. Both divisions are equational, d. Both divisions are reductional, 22. Anastral mitosis is characteristic of, a. Higher plants, b. Higher animals, c. All living organism, d. Lower animals, 23. Proteins can be synthesized over/in:, a. Rough ER, b. Ribosomes, c. Cytoplasm, d. All of these, 24. All types of proteins synthesised over ribosomes have:, a. L-amino acids, b. D-amino acids, c. Both D- and L-amino acids, d. Only optically active amino acids, , 27. Exchange of substances between a cell and its, environment is due to:, a. osmosis, b. active transport, c. diffusion, d. All of these, 28. Calcium works as catalyst for, a. ATPase, b. Phospholipids, c. Succinic dehydrogenase d. All of these, 29. Phosphorus is present in, a. Vitamin A, c. Lecithin, , b. Vitamin C, d. Glycin, , 30. Kranz anatomy is found in, a. C2 plants, c. C4 plants, , b. C3 plants, d. Succulent plants, , 31. According to van Helmont food is synthesised by, a. Air, b. Soil, c. H2O, d. H2O and air, 32. Why do fruit juices turn bitter if kept in an open place for, some time?, a. Juices have something inside them which makes it, bitter, b. It is due to fermentation brought about by yeast cells, c. It is due to the activity of fungi present in the, atmosphere, d. All of the above, 33. Lowest rate of respiration will be in, a. Collenchyma, b. Leaf, c. Dry seeds, d. Germinated seeds, 34. Slow respiring plants or plant tissues are, a. Promeristems, b. Cambium, c. Leaf primordia and young plant, d. Adult plants and matured tissues, , 25. In osmosis, there is movement of:, a. solute only, b. solvent only, c. Both a. and b., d. neither solute nor solvent, , 35. Antibiotic has been extracted from, a. Chlorella, b. Spirogyra, c. Oscillatoria, d. Ulothrix, , 26. Phloem conducts food by:, a. perforated sieve plates, b. bast fibres, c. xylem parenchyma, d. xylem fibres, , 36. Which of the following plants does not have archegonium?, a. Funaria, b. Spirogyra, c. Cycas, d. Pteris

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77, , Mock Test-2, , 37. The essential mineral for synthesis of proteins in body is:, a. Sodium, b. Iron, c. Potassium, d. Sulphur, 38. Which one is the matching pair characterised by, pigmented skin of hands, legs and irritability?, a. Iodine – Goitre, b. Nicotinamide – Pellagra, c. Thiamine – Beriberi, d. Protein – Kwashiorkor, 39. Which one is best source of vitamin A?, a. Apples, b. Carrots, c. Honey, d. Peanut, 40. In photosynthesis, NADPH2 is formed, but in respiration it, is formed during:, a. HMP, b. ETS, c. Krebs cycle, d. None of these, 41. The exchange of gases in the alveoli of the lungs takes, place by:, a. Osmosis, b. Simple diffusion, c. Passive transport, d. Active transport, 42. Heartbeat of an average human lasts:, a. 1 minute, b. 0.8 second, c. 0.2 second, d. 0.5 second, 43. Pulse beat is measured from, a. Vein, b. Artery, c. Capillary, d. Nerve, 44. ________ is the pace maker of heart., a. AV node, b. SA node, c. Purkinje’s fibre, d. AV septum, 45. The nephrostomes in the kidneys are functional in:, a. Rabbit, b. Adult frog, c. Mouse, d. Cockroach, 46. The main function of Henle’s loop is:, a. Passage of urine, b. Filtration of blood, c. Formation of urine, d. Conservation of water, , 49. Which set of hormones are not antagonistic?, a. Parathormone and thyrocalcitonin, b. Glucagon and insulin, c. Growth hormone and somatostatin, d. Adrenaline and noradrenaline, 50. Deficiency of ADH causes:, a. Acromegaly, c. Diabetes insipidus, , b. Dwarfism, d. Diabetes mellitus, , 51. Visual purple is a pigment concerned with:, a. Colour of the eye, b. Colour blindness, c. Perception of image, d. Formation of image, 52. Suppose a person wears convex glasses for proper vision., Where you think the image of the object is formed in his, eyes when he is not using the glasses?, a. On the blind spot, b. On the yellow spot, c. Behind the retina, d. In front of the retina, 53. Maximum variations in the life cycle are found in:, a. Algae, b. Bryophytes, c. Pteridophytes, d. Seed plants, 54. Most primitive kind of flower is represented by:, a. Rosa, b. Magnolia, c. Helianthus d. Brassica, 55. Exact definition of gastrulation is:, a. Beginning of archenteron, b. Rapid cell division, c., Morphogenetic, movements, (presumptive areas), d. Formation of organs, , of, , 56. Who proposed the organiser theory?, a. Schwann, b. Von Baer, c. Spemann, d. Vries, 57. Fertilisation is external in:, a. Lizards, c. Frogs, , b. Rats, d. Birds, , 47. What is sprain?, a. More pulling of tendon, b. Less pulling of tendon, c. More pulling of ligament, d. Less pulling of ligament, , 58. Sex chromosomes may be found in:, a. Intersexual plant, b. Unisexual flower, c. Unisexual plant, d. Monocarpic plant, , 48. Muscles are red because of the presence of, a. Myoglobin and mitochondria, b. Haemoglobin and golgi bodies, c. Globulin and mitochondria, d. Protein and lysosome, , 59. Inheritance of total colour-blindness is:, a. X-linked, b. XY-linked, c. Y-linked, d. None of these, , blastomeres

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Biology, , 78, , 60. In humans, red-green colour blindness is recessive and sex, linked, while albinism is recessive and autosomal. A, marriage between two homozygous parents, a normalvisioned albino woman, and a colour blind and normally, pigmented man will produce children., a. All phenotypically normal visioned and have normal, pigmentation., b. Half of them are colour blind and the other half having, normal vision, and all of them having normal, pigmentation., c. All have normal vision, but half of them are albinos and, the other half with normal pigmentation., d. Of four categories, normal visioned and pigmented,, normal visioned and albino, colour blind and pigmented,, colour blind, albino, all in equal proportions., , 68. The production of all alcoholic beverages, except those, produced by carbonic maceration, employs ethanol, fermentation by yeast. Which of the following are correct?, I. Wines and brandies are produced by fermentation of the, natural sugars present in fruits, especially grapes., II. Beers, ales, and whiskeys employ fermentation of grain, starches that have been converted to sugar by the, application of the enzyme, amylase, which is present in, grain kernels that have been germinated., III. Amylase-treated grain or amylase-treated potatoes are, fermented for the production of rum., IV. Fermentation of cane sugar is the first step in, producing vodka., a. I, II III, IV, b. I, II, III, IV, c. I and II, d. I and III, , 61. A man whose mother was haemophilic marries a woman, whose both the parents were normal. The % of, haemophilic children will be:, a. 25%, b. 50%, c. 100%, d. Zero, , 69. Which one is poor-man’s cow?, a. Sheep, b. Yak, c. Goat, d. Llama, , 62. Abundance of a species in a population, within habitat is, called:, a. Niche density, b. Absolute density, c. Relative density, d. Geographic density, 63. The concept of chemical evolution is based upon:, a. Possible origin of life by combination of chemicals, under suitable environmental conditions, b. Crystallisation of chemicals, c. Interaction of water, air and clay under intense heat, d. Effect of solar radiation on chemicals, 64. Respiratory roots are found in, a. Sonneratia and Heritiera b Trapa, c. Rhizophores, d. Eichhornia, , d. Psychosis, , 67. _______ is a bacterium and it is notable for its bioethanolproducing capabilities, which surpass yeast in some, aspects., a. Bacillus subtilis, b. Bacillus cereus, c. Zymomonas mobilis, d. Lactobacillus lactis, , b. gastric glands, d. salivary glands, , 71. Which of the following statements is true?, a. Salivary glands secrete silk, b. Larval form of moth secretes silk, c. Silk is extracted from cocoon of moth by boiling, d. All of the above, 72. Nickel contributes to the formation of one of the, following:, a. Urease, b. Dehydrogenase, c. Rubisco protein, d. Nitrate reductase, 73. Leukaemia is caused by:, a. Ca40, c. Caesium, , 65. Which one of the following is the correct match?, a. Reserpine–Tranquilizer, b. Cocaine–Opiate narcotic, c. Morphine–Hallucinogenic, d. Bhang–Analgesic, 66. Addiction to alcohol causes:, a. Cirrhosis, b. Epilepsy c. Neurosis, , 70. Silk is the secretion of, a. cephalic glands, c. buccal glands, , b. Sr90, d. Iodine, , 74. Out of the total amount of freshwater what percentage is, present in rivers, marshes lakes and streams?, a. 0.36%, b. 0.036%, c. 3%, d. 22.4%, 75. Which terrestrial biome represents climax of natural, formation?, a. Taiga, b. Northern boreal forests, c. Tropical rain forests, d. Temperate deciduous forests, 76. The number of national parks in India is:, a. 56, b. 69, c. 76, , d. 86

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79, , Mock Test-2, , 77. In which state is the Kanha National Park?, a. Rajasthan, b. Uttar Pradesh, c. Madhya Pradesh, d. Assam, 78. Major pollution causing agent is:, a. Man, b. Animals, c. Hydrocarbon gases, d. None of the above, 79. Effect of pollution is first and most marked on, a. Natural flora of a place, b. Natural geochemical cycle, c. Natural gaseous cycle, d. Natural balance of our environment, 80. Greenhouse effect is due to the presence of, a. Ozone layer in the atmosphere, b. Infrared light reaching the earth, c. Moisture layer in the atmosphere, d. CO2 layer in the atmosphere, 81. What is the first step in Southern blot technique?, a. Denaturation of DNA on the gel for hybridisation with, specific probe, b. Production of a group of genetically identical cells, c. Digestion of DNA by restriction enzyme, d. Denaturation of DNA from a nucleated cell such as one, from the scene of crime, , 86. Match the following Columns., Column I, Column II, (A) Ontology, 1. Study of tumours, (B) Oncology, , 2. Study of birds nest, , (C) Oology, , 3. Study of dragon flies, , (D) Odonatology, , 4. Study of development, of an organism, 5. Study of eggs of birds, b. A-1, B-2, C-3, D-4, d. A-3, B-2, C-1, D-4, , a. A-4, B-5, C-1, D-3, c. A-4, B-3, C-2, D-1, , 87. Match the different types of spores listed under Column I, with the names of the organisms given under Column II., Choose the answer which gives correct combination of, the alphabets of the two Columns., Column I (Spores), , Column II (Organisms), , (A) Ascospores, , 1. Diatoms, , (B) Endospores, , 2. Agaricus, , (C) Auxospores, , 3. Bacteria, , (D) Basidiospores, , 4. Yeast, 5. Nephrolepis, , a. A-4, B-3, C-1, D-2, c. A-4, B-1, C-5, D-2, , b. A-4, B-1, C-3, D-5, d. A-4, B-5, C-1, D-2, , 82. cDNA probes are copied from messenger RNA molecules, with the help of:, a. Restriction enzymes, b. Reverse transcriptase, c. DNA polymerase, d. Adenosine deaminase, , 88. Match the following Columns., , 83. Gel electrophoresis is used for:, a. Construction of recombinant DNA by joining with, cloning vectors, b. Isolation of DNA molecule, c. Cutting of DNA into fragments, d. Separation of DNA fragments according to their size, , a. A-4; B-1, C-2, D-3, b. A-1; B-4, C-2, D-3, c. A-4; B-2, C-3, D-1, d. A-1; B-2, C-3, D-4, 89. Match Column I and with Column II and select the, correct answer using the codes given below the lists., , 84. A pollutant is an agent which causes change in, a. Balance of nature, b. Local flora, c. Geochemical cycles, d. Local fauna, 85. Polluted water can be purified by using, a. Microorganisms, b. Algae, c. Pesticides, d. Fishes, , Column I, (A) Bulliform cells, , Column II, 1. Stomata, , (B) Guard cells, , 2. Aerating pore, , (C) Lenticel, , 3. Accessory cells, , (D) Subsidiary cell, , 4. Isobilateral leaf, , Column I, (A) Lysosome, , Column II, 1. Cytoskeleton, , (B) Microsomes, , 2. Autodigestion, , (C) Microtubules, , 3. Secretory granules, , (D) Golgi bodies, , 4. A fragment of ER, , a. A-1, B-2, C-3, D-4, b. A-2, B-4, C-1, D-3, c. A-3, B-2, C-1, D-4, d. A-2, B-1, C-4, D-3

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Biology, , 80, , 90. Match the following Columns., , (a) Infective nature of tobacco mosaic disease was, discovered by Mayer., , Column I, (A) Stomatal, transpiration, , Column II, 1. Transpiration through, lenticels, , 7., , (b) Infective portion of a virus is nucleic acid, this was, discovered by Hershey and Chase., , (B) Cuticular, transpiration, , 2. Transpiration through, cuticles, , 8., , (a) Alary muscle is associated with heart and circulation., , (C) Lenticular, transpiration, , 3. Transpiration through, corky covering of trees, , 9., , (c) Organ of mastication in cockroach is mandibles., , (D) Bark transpiration, , 4. Transpiration through, stomata, 5. Transpiration through, exathodes, , 10. (a) Binary fission is the commonest mode of asexual, reproduction in bacteria., 11. (b) In nitrification, Nitrosomonas bacteria converts, ammonia to nitrite., 12. (a) In Bougainvillea large coloured structures are bracts., 13. (c) Scorpioid cyme, , a. A-4; B-2, C-1, D-3, b. A-1; B-2, C-3, D-4, c. A-2; B-4, C-3, D-1, d. A-4; B-3, C-2, D-1, , 14. (a) Young fleshy inflorescence is edible in cauliflower., 15. (b) Sclerenchymatous hypodermis is found in monocot, stems., , Answers and Solutions, , 1., , 6., , 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , c, , b, , a, , a, , b, , a, , b, , a, , c, , a, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , b, , a, , c, , a, , b, , a, , b, , c, , d, , c, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , b, , a, , d, , a, , b, , a, , d, , d, , c, , c, , 31., , 32., , 33., , 34, , 35., , 36., , 37., , 38., , 39., , 40., , c, , b, , c, , d, , a, , b, , d, , b, , b, , c, , 41., , 42., , 43., , 44., , 45., , 46., , 47, , 48., , 49., , 50., , b, , b, , b, , b, , b, , d, , c, , a, , d, , c, , 51., , 52., , 53., , 54., , 55., , 56., , 57., , 58., , 59., , 60, , d, , c, , a, , b, , c, , c, , c, , c, , a, , a, , 61., , 62., , 63., , 64., , 65., , 66., , 67., , 68., , 69., , 70., , d, , a, , a, , a, , a, , a, , c, , c, , c, , d, , 71., , 72., , 73., , 74., , 75., , 76., , 77., , 78., , 79., , 80., , d, , a, , b, , a, , c, , b, , c, , a, , a, , d, , 81., , 82., , 83., , 84., , 85., , 86., , 87., , 88., , 89., , 90., , c, , b, , d, , c, , a, , a, , a, , a, , b, , a, , (c) Silkworm, Aquaculture is the farming of aquatic, organisms in both coastal and inland areas involving, interventions in the rearing process to enhance production., , 2., , (b) Haematology is the study of blood., , 3., , (a) If individuals in a population did not show genetic, variations., , 4., , (a) The process of evolution is a continuous process., , 5., , (b) Matter energy interaction., , 16. (a) Polyarch vascular bundles are usually found in, monocot roots., 17. (b) In Crigler-Najjar syndrome, jaundice is apparent at, birth, or, in, infancy., Severe, unconjugated, hyperbilirubinemia can lead to a condition called, kernicterus, which is a form of brain damage caused by, the accumulation of unconjugated bilirubin in the brain, and nerve tissues., 18. (c) Neutrophils, 19. (d) Singer and Nicholson proposed the Fluid-mosaic, model of membrane structure., 20. (c) Peroxisome, photorespiration., , cell, , organelle, , is, , essential, , for, , 21. (b) First division is reductional and second is equational., 22. (a) Anastral mitosis is characteristic of higher plants., 23. (d) Rough ER, Ribosomes and Cytoplasm., 24. (a) All types of proteins synthesised over ribosomes have, L-amino acids., 25. (b) In osmosis, the movement of solvent occur., 26. (a) Phloem conducts food by perforated sieve plates., 27., , (d) Osmosis,, , active transport and diffusion., , 28. (d) ATPase, phospholipids and succinic dehydrogenase. It, regulates the activity of calcium ATPase, and in

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81, , Mock Test-2, , hypothyroidism there is an increase in the ratio of, inorganic phosphate to ATP in resting muscle and a, decrease in phosphocreatine in working muscle., , 51. (d) Visual purple is a pigment concerned with formation, of image., 52. (c) Behind the retina, , 29. (c) Phosphorus is present in Lecithin., , 53. (a) Algae, , 30. (c) Kranz anatomy is found in C4 plants., , 54. (b) Most primitive kind of flower is represented by, magnolia., , 31. (c) H2O, 32. (b) It is due to fermentation brought about by yeast cells., 33. (c) Lowest rate of respiration will be in dry seeds., , 55. (c) Gastrulation is morphogenetic, blastomeres (presumptive areas)., , movements, , of, , 56. (c) Spemann proposed the organizer theory., 34. (d) Slow respiring plants or plant tissues are adult plants, and matured tissues., 35. (a) Chlorella is a type of algae that grows in fresh water., The whole plant is used to make nutritional supplements, and medicine., 36. (b) Spirogyra a filamentous green alga of a genus that, includes blanket weed., , 57. (c) In frogs external fertilisation occur., 58. (c) Sex chromosomes may be found in unisexual plant, 59. (a) Inheritance of total colour-blindness is X-linked., 60. (a) All phenotypically normal visioned and have normal, pigmentation., 61. (d) Zero, , 37. (d) Sulphur is the essential mineral for synthesis of, proteins in body., , 62. (a) Abundance of a species in a population, within habitat, is called niche density., , 38. (b) Nicotinamide – Pellagra, , 63. (a) Possible origin of life by combination of chemicals, under suitable environmental conditions., 64. (a) Respiratory roots are found in Sonneratia and, Heritiera., 65. (a) Reserpine–Tranquilizer, , 39. (b) Carrots is best source of vitamin A., 40. (c) The Krebs Cycle is an aerobic process consisting of, eight definite steps. In order to enter the Krebs Cycle, pyruvate must first be converted into Acetyl-CoA by, pyruvate dehydrogenase complex found in the, mitochondria., 41. (b) The exchange of gases in the alveoli of the lungs takes, place by simple diffusion., 42. (b) 0.8 second., 43. (b) Pulse beat is measured from artery., 44. (b) SA node, 45. (b) The nephrostomes in the kidney’s are functional in, adult frog., 46. (d) Conservation of water is the main function of Henle’s, loop., 47. (c) More pulling of ligament is sprain., 48. (a) Muscles are red because of the presence of myoglobin, and mitochondria., 49. (d) Adrenaline and noradrenaline, 50. (c) Deficiency of ADH causes diabetes insipidus., , 66. (a) Addiction to alcohol causes cirrhosis., 67. (c) Zymomonas mobilis, 68. (c) (I and II), I. Wines and brandies are produced by fermentation of the, natural sugars present in fruits, especially grapes., II. Beers, ales, and whiskeys employ fermentation of grain, starches that have been converted to sugar by the, application of the enzyme, amylase, which is present in, grain kernels that have been germinated., 69. (c) Goat is poor-man’s cow., 70. (d) Silk is the secretion of salivary glands., 71. (d) Salivary glands secrete silk. Larval form of moth, secretes silk. Silk is extracted from cocoon of moth by, boiling. So, all are correct., 72. (a) Nickel contributes to the formation of urease., 73. (b) Sr90, 74. (a) 0.36%

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Biology, , 82, , 75. (c) Tropical Rainforests, 76. (b) 69, 77. (c) Madhya Pradesh, 78. (a) Man is major pollution causing agent., 79. (a) Natural flora of a place., 80. (d) Green house effect is due to the presence of CO2 layer, in the atmosphere., 81. (c) Digestion of DNA by restriction enzyme, 82. (b) cDNA probes are copied from messenger RNA, molecules with the help of reverse transcriptase., , 83. (d) Gel electrophoresis is used for separation of DNA, fragments according to their size., 84. (c) A pollutant is an agent which causes change in, geochemical cycles., 85. (a) Polluted water can be purified by using microorganisms., 86. (a) A-4, B-5, C-1, D-3, 87. (a) A-4, B-3, C-1, D-2, 88. (a) A-4; B-1, C-2, D-3, 89. (b) A-2, B-4, C-1, D-3, 90. (a) A-4; B-2, C-1, D-3

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83, , Mock Test-3, , Mock Test-3, 1., , ‘The law of limiting factor’ was proposed by, a. Blackman, b. Liebig, c. Hatch and Slack, d. Arnol, , 2., , Use and disuse theory was put forward by:, a. Lamarck, b. Darwin, c. Huxley, d. Wallace, , 3., , 4., , 5., , Most primitive living mammals which provide an, evidence of organic evolution from geographical, distribution are found in:, a. China, b. India, c. Australia, d. Africa, Trilobites were evolved during which of the following, period, a. Salvian, b. Cambrian, c. Ordovician, d. Precambrian, Longest known virus is:, a., , ∅ ×174, , c. Citrus tristeza, , 12. The axis of inflorescence is known as:, a. Thalamus, b. Torus, c. Peduncle, d. Pedicel, 13. In cyathium inflorescence the ratio between male: female, flowers is:, a. One : many, b. Many : one, c. One : one, d. Many : many, 14. In a raceme inflorescence, flowers are:, a. Arranged in basipetal succession, b. Arranged in acropetal succession, c. May be acropetal or basipetal, d. None of the above is correct, , b. TMV, d. T1 phage, , 6., , The group of viruses which attack blue-green algae are, termed:, a. Bacteriophages, b. Cyanophages, c. Mosaic viruses, d. Phages only, , 7., , Which of the following is an insect?, a. Moth, b. Mite, c. Prawn, d. Scorpion, , 8., , Complete metamorphosis is found in:, a. Housefly and mosquito, b. Housefly and cockroach, c. Mosquito and cockroach, d. None of these, , 9., , Asexual reproductive bodies in bacteria are:, a. Akinetes, b. Heterocysts, c. Chloroplasts, d. Conidia, , 10. Wine turns sour because of:, a. Heat, b. Aerobic bacteria, c. Anaerobic bacteria, d. Exposure to light, , 11. Milk is converted to curd bya. Xanthomonas citri, b. Bacillus magaterium, c. Acetobacter aceti, d. Streptococcus lactis, , 15. A transverse section of monocot stem can be distinguished, from that of a dicot stem by observing the, a. Vascular bundles which are scattered in monocot stems, b. Sunken Stomata, c. Cortex, d. Concentric vascular bundles, 16. In dicot stems the vascular bundles are, a. Scattered, b. Arranged in a ring, c. Xylem and phloem are situated alternately, d. Amphicribral, 17. Pith which forms the central core of stem is also known as, a. Medulla, b. Epiblema, c. Bast, d. Ground tissue, 18. Elastic cartilage matrix contains:, a. Elastic-fibres only, b. Collagen fibres only, c. Both elastic and collagen fibres, d. Myofibrils, 19. Difference between the femur of rabbit and femur of frog, is:, a. Haversian system of canals is found in the shaft of, femur of rabbit, not of frog, b. Yellow bone marrow is found, c. Frog has spongy bones, d. Osteocytes are of different types

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Biology, , 84, , 20. A trisomic individual has the following chromosome, number, a. 2n – 1, b. 2n + 2, c. 2n +1, d. 2n + 3, 21. The site of synthesis and degradation of H2O2 in a plant, cell is:, a. Lysosome, c. Peroxisome, , b. Spherosome, d. Microsome, , 22. In the green plant cell the genes required for the synthesis, of chlorophyll pigments resides in the:, a. Chloroplast DNA, b. Cytoplasm, c. Nucleus, d. Cell membrane, 23. Terminalisation is a process related to, a. Mitosis, b. Meiosis, c. Diakinesis, d. Cytokinesis, 24. Formation of bivalents during meiosis occurs at:, a. Leptotene, b. Diplotene, c. Pachytene, d. Zygotene, , 30. Woodward (1669) observed that plant grew better in, muddy water than in rain water because, a. Muddy water had most of essential elements dissolved, in it, b. Muddy water had micro nutrients dissolved in it, c. Muddy water had macro nutrients dissolved in it, d. None of these, 31. If a plant material is dried and burnt in a crucible, the, residue would contain, a. Oxides and carbonates of about ten elements, b. Carbon and phosphorus, c. Nitrates and sulphates only, d. Oxides and carbonates of Ca and Mg only, 32. Emerson found red drop in wavelength, a. 660 nm, b. 670 nm, c. 680 nm, d. 680–700 nm, 33. In cyclic photophosphorylation PH I donate electrons to, a. Plastoquinone, b. Plastocyanin, c. NADP, d. Cytochrome b6, , 25. When ribosomes move along mRNA, the tRNA and, synthesized polypeptide are transferred from A-site to, P-site, the process is called:, a. Translocation, b. Transpeptidation, c. Transition, d. Transversion, , 34. Light reaction of photosynthesis form, a. Carbohydrates, b. ATP, c. NADP and O2, d. NADPH2, O2 and ATP, , 26. The following cell organelles are required for synthesis of, secretory proteins:, 1. Ribosome, 2. Golgi complex, 3. Lysosomes, 4. ER, Find their correct sequence in which they are required:, a. 1 3 2 4, b. 1 4 2 3, c. 4 1 2 3, d. 1 4 3 2, 27. Wilting occurs when, a. rate of transpiration is higher than absorption, b. rate of absorption is higher than transpiration, c. excess root pressure, d. high relative humidity in air, , 36. What is active glucose?, a. FAD–glucose, c. Phosphoglucose, , 28. Osmotic pressure of a solution is:, a. more than that of pure solvent, b. less than that of pure solvent, c. variable depending upon concentration, d. equal to that of pure solvent, 29. Stomata that can also open at night, present in:, a. xerophytes, b. gametophytes, c. hydrophytes, d. None of these, , 35. Roots can take oxygen when it is in, a. Gaseous form, b. Solution with water, c. Chemical combination with other compounds, d. Liquid form, b. NAD–glucose, d. Glycerophosphate, , 37. Which of the following is not likely to be found on sea, shore?, a. Green algae, b. Red algae, c. Brown algae, d. Moss, 38. Ergotism is caused by, a. Claviceps, b. Penicillium, c. Aspergillus, d. Rhizobium, 39. Which of the following pair is monosaccharide?, a. Glucose and sucrose, b. Ribose and maltose, c. Fructose and glucose, d. Ribose and sucrose

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85, , Mock Test-3, , 40. Beauty vitamin is:, a. Vitamin A, c. Vitamin E, 41. ATP is a:, a. Nucleotide, c. Purine base, , b. Vitamin C, d. Vitamin K, , 49. Anti-ageing hormone melatonin is produced by:, a. The pineal body, b. Middle lobe of pituitary, c. Adenophysis, d. Testis, , b. Nucleosome, d. Nucleoside, , 50. Parathormone causes:, a. Hypercalcaemia, c. Hyperglycaemia, , b. Hypocalcaemia, d. Hypoglycaemia, , 42. Cytochrome is:, a. Metallo-flavoprotein, b. Iron-containing porphyrin pigment, c. Glycoprotein, d. Lipid, , 51. Why owls are able to see only during nights?, a. Because retina of owls contains only rods, b. Because retina of owls contains only cones, c. Because owls are nocturnal, d. Because of absence of rods and cones both, , 43. Lymph node acts as _______ for the microorganisms., a. Messengers, b. Filters, c. Scavengers, d. None of these, , 52. Antibacterial agent present in tears is, a. Urea, b. Lysozyme, c. Albumin, d. Globulin, , 44. The chief function of lymph nodes in mammalian body is, to:, a. destroy the old and worn out red blood cells, b. produce WBCs, c. produce a hormone, d. collect and destroy pathogens, 45. Consider the following four statements (A-D) about, certain desert animals such as kangaroo rat., (A) They have dark colour and high rate of reproduction, and excrete solid urine., (B) They do not drink water, breathe at a slow rate to, conserve water, and have their body covered with thick, hairs., (C) They feed on dry seeds and do not require drinking, water., (D) They excrete very concentrated urine and do not use, water to regulate body temperature., Which of two of the above statements for such animals are, true?, a. C and A, b. A and B c. C and D d. B and C, 46. Which one of the following is not a part of renal pyramid?, a. Loop of Henle, b. Peritubular capillaries, c. Convoluted tubules, d. Collecting ducts, 47. Black bands of myofibrils are known as, a. Isometric band, b. Anisotropic band, c. Isotonic band, d. Heterotropic band, 48. The muscle fatigue occurs due to accumulation of, a. Pyruvic acid, b. ATP, c. Lactic acid, d. Eroman CO2, , 53. Zygomorphic flowers are:, a. Primitive, b. Advanced, c. Usually bat-pollinated, d. Usually beetle-pollinated, 54. Floral evolution may be trace along:, a. Adnation and connation among floral parts, b. Floral symmetry, c. Position of ovary, d. All of the above, 55. How many secondary spermatocytes will form 400, spermatozoa?, a. 100, b. 400, c. 40, d. 200, 56. Oogenesis comprises:, a. Multiplication phase, c. Maturation phase, , b. Growth phase, d. All of these, , 57. “Like begets like” is due to, a. Euthenics, c. Inheritance, , b. Dominance, d. Eugenics, , 58. Which one of the following is the sex linked character in, human inheritance?, a. Diabetes insipidus, b. Colour-blindness, c. Breast in females, d. Beard in males, 59. The crustacean parasite, which changes the sex of the host, crab, from male to female (castration) is:, a. Taenia solium, b. Plasmodium, c. Ascaris, d. Sacculina

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Biology, , 86, , 60. Mark the wrong option in the sex determination of, Drosophila:, a. 3X + 3A is female, b. X + 2A is a female, c. 3X + 3A is a female, d. 2X + 2A is female, 61. Among the human ancestors, the brain size was more than, 1000 cc in:, a. Homo habilis, b. Homo neanderthalensis, c. Homo erectus, d. Ramapithecus, 62. Select the correct statement from the following:, a. Mutation variations are small and directional, b. Darwinian variations are small and directionless, c. Fitness is the end result of the ability to adapt and get, selected by nature, d. All mammals except whales and camels have seven, cervical vertebrae, 63. Bronchial asthma and allergic reactions are mainly caused, due to:, a. Air borne CFC, b. Soot, c. Air-borne spores of fungi and bacteria, pollen grains,, fur, hairs, etc., d. All of these, 64. A colourless, odourless, non-irritant highly toxic CO, impairs:, a. Nervous system, b. Digestive system, c. Respiratory system, d. Excretory system, 65. In production of alcoholic beverages, in all cases, the, fermentation must take place in a vessel that is arranged to, allow _____ to escape, but that prevents outside air form, coming in, as exposure to _____ would prevent the, formation of ethanol., a. Oxygen; Carbon dioxide b. Methane; Nitrogen, c. Nitrogen; Methane, d. Carbon dioxide; Oxygen, 66. Identify the incorrect statement regarding lactic acid, fermentation:, a. Lactic acid fermentation is a biological process by, which sugars such as glucose, fructose, and sucrose are, converted into cellular energy and the metabolic product, lactic acid., b. It is the anaerobic form of respiration that occurs in, some bacteria and animal cells in absence of oxygen., c. During homolactic acid fermentation, one molecule of, glucose is ultimately converted into two molecules of, lactic acid., d. In heterolactic acid fermentation, sometimes referred to, as the phosphoketolase pathway, the products of, fermentation is only one molecule of lactic acid., , 67. Which of the following species of silkworm are found in, India?, a. Antheraea Pernyi, b. Antheraea paphia, c. Antheraea assama, d. Both b. and c., 68. The aquaculture involves the production of useful, a. aquatic plants, b. shrimps and prawns, c. fishes and oysters, d. All of these, 69. Red wine is:, a. Beer, c. Cider, , b. Wine, d. Sake, , 70. Green muffler is useful against:, a. Air pollution, b. Noise pollution, c. Soil pollution, d. Radioactive pollution, 71. Which of the following is not a mental disorder?, a. Epilepsy, b. Neurosis, c. Psychosis, d. Plague, 72. Deciduous forests occur in:, a. Rain shadows, c. Temperate zones, , b. Tropics, d. Taiga, , 73. Migratory birds belong to which kind of resources:, a. National, b. International, c. Multinational, d. Food, 74. The animals which are in danger of extinction of which is, also possible are known as, a. Threatened, b. Vulnerable, c. Endangered, d. Rare, 75. The species which may become the endangered category, are known as, a. Vulnerable, b. Threatened, c. Rare, d. Living fossils, 76. Which group of vertebrates comprises the highest, number of endangered species?, a. Birds, b. Mammals, c. Fishes, d. Reptiles, 77. Sewage water can be purified for recycling with the action, of:, a. Aquatic plants, b. Penicillin, c. Microorganisms, d. Fishes, 78. One of the most dangerous radioactive pollutant to Homo, sapiens is:, a. Strontium-90, b. Phosphorus-32, c. Sulphur-35, d. None of the above

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87, , Mock Test-3, , 79. The first successfully cloned mammal that gained, worldwide publicity was:, a. Molly (a sheep), b. Polly (a sheep), c. Chance (a bull), d. Dolly (a sheep), 80. Producing a giant mouse in the laboratory was possible, through:, a. Gene mutation, b. Gene manipulation, c. Gene synthesis, d. Gene duplication, 81. In transgenics, expression of transgene in target tissue is, determined by:, a. Enhancer, b. Transgene, c. Promoter, d. Reporter, 82. In the last decades, most serious nuclear reactor accident, created MIC gas tragedy in, a. Russia (1990) and Bhopal (1996), b. Ukraine (1986) and Bhopal (1984), c. Bhopal (1994) and Russia (1990), d. Ukraine and USA (1984), 83. Which of the following country is responsible for, releasing largest amount of green-house gases?, a. Russia, b. Germany, c. Brazil, d. America (USA), 84. The leopard or ’tendwa' is zoologically named as, a. Panthera tigris, b. Panthera leo, c. Panthera uncia, d. Panthera pardus, 85. In elephants the tusks are:, a. Incisors, b. Canines, c. Premolars, d. Molars, 86. Match the following Columns., Column I, Column II, (A) Substance that induces, 1. r RNA, (B) Non-coding segment of 2. Lactose, DNA, (C) Forms part of the 3. Anticodon, ribosome, (D) mRNA as it leaves the 4. Transcript, DNA, (E) Part of tRNA, 5. Intron, a. A-1, B-4, C-2, D-5, E-6, b. A-2, B-5, C-1, D-4, E-3, c. A-6, B-1, C-2, D-3, E-4, d. A-1, B-4, C-3, D-2, E-5, , 87. Match the Column I with Column II and choose the, correct option., Column I, Column II, (A) Hyaluronidase, 1. Autosomal reaction, (B) Corpus luteum, 2. Morphogenetic, movements, (C) Gastrulation, 3. Progesterone, (D) Capacitation, 4. Mammary gland, (E) Colostrum, 5. Sperm activation, a. A-5, B-2, C-4, D-1, E-3, b. A-1, B-3, C-2, D-5, E-4, c. A-2, B-3, C-4, D-5, E-1, d. A-1, B-2, C-3, D-5, E-4, 88. Match the Column I with Column II and choose the, correct option., Column I, Column II, (A) Gemmules, 1. Agave, (B) Leaf-buds, 2. Penicillium, (C) Bulbil, 3. Water hyacinth, (D) Offset, 4. Sponges, (E) Conidia, 5. Bryophyllum, a. A-4, B-5, C-1, D-3, D-2, b. A-4, B-3, C-2, D-1, E-5, c. A-3, B-5, C-4, D-2, E-1, d. A-4, B-1, C-5, D-3, E-2, 89. Match the following Columns., Column I, Column II, (A) Calcitonin, 1. Treatment of diabetes, mellitus, (B) Gonadotropin, 2. Treatment of rickets, (C) Erythropoietin, 3. Diabetes insipidus, (D) Insulin, 4., (E) ADH, 5., a. A-3, B-1, C-4, D-2, E-5, c. A-4, B-3, C-2, D-1, E-5, , Formation of erythrocytes, Treatment of infertility, b. A-3, B-2, C-1, D-5, E-4, d. A-2, B-5, C-4, D-1, E-3, , 90. Match the following Columns., Column I, Column II, (A) Larynx, 1. Lid of larynx, (B) Trachea, 2. Air sacs, (C) Alveoli, 3. Voice box, (D) Epiglottis, a. A-3, B-5, C-2, D-4, b. A-3, B-4, C-1, D-2, c. A-3, B-4, C-2, D-5, d. A-3, B-4, C-2, D-1, , 4. Wind pipe, 5. Common passage

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Biology, , 88, , 16. (b) In dicot stems the vascular bundles are arranged in a, ring., , Answers and Solutions, , 1., , 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , a, , a, , a, , b, , b, , b, , a, , a, , d, , b, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , d, , c, , b, , b, , a, , b, , a, , c, , a, , c, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , c, , a, , c, , d, , a, , b, , a, , a, , a, , c, , 31., , 32., , 33., , 34, , 35., , 36., , 37., , 38., , 39., , 40., , a, , d, , c, , d, , a, , c, , d, , a, , c, , c, , 41., , 42., , 43., , 44., , 45., , 46., , 47, , 48., , 49., , 50., , a, , b, , b, , d, , c, , c, , b, , c, , a, , a, , 51., , 52., , 53., , 54., , 55., , 56., , 57., , 58., , 59., , 60, , a, , b, , b, , d, , d, , d, , c, , b, , d, , b, , 61., , 62., , 63., , 64., , 65., , 66., , 67., , 68., , 69., , 70., , b, , c, , c, , c, , d, , d, , d, , d, , b, , b, , 71., , 72., , 73., , 74., , 75., , 76., , 77., , 78., , 79., , 80., , d, , c, , c, , c, , a, , b, , c, , a, , d, , b, , 81., , 82., , 83., , 84., , 85., , 86., , 87., , 88., , 89., , 90., , d, , b, , d, , a, , a, , b, , b, , a, , d, , c, , (a) ‘The law of limiting factor’ was proposed by, Blackman., , 2., , (a) Use and disuse theory was put forward by Lamarck., , 3., 4., , (a) China, (b) Trilobites were evolved during Cambrian period., , 5., , (b) TMV was the first virus to be discovered over a, century ago and was the first virus ever purified., , 6., , (b) Cyanophages is the group of viruses which attack, blue-green algae., , 7., , (a) Moth is an insect., , 8., , (a) Complete metamorphosis is found in housefly and, mosquito., , 9. (d) Asexual reproductive bodies in bacteria are conidia., 10. (b) Wine turns sour because of aerobic bacteria., 11. (d) Lactococcus lactis is converted milk to curd., 12. (c) The axis of inflorescence is known as peduncle., 13. (b) Many : One, 14. (b) In a raceme inflorescence, flowers are arranged in, acropetal succession. When the main axis of raceme is, branched and the lateral branches bear the flowers, the, inflorescence is known as compound raceme or panicle,, e.g., neem, etc., 15. (a) A.T.S. of monocot stem can be distinguished from that, of a dicot stem by observing the vascular bundles which, are scattered in monocot stems., , 17. (a) Pith which forms the central core of stem is also, known as medulla., 18. (c) Elastic cartilage matrix contains both elastic and, collagen fibres., 19. (a) Haversian system of canals is found in the shaft of, femur of rabbit, not of frog., 20. (c) 2n +1, 21. (c) The site of synthesis and degradation of H2O2 in a, plant cell is peroxisome., 22. (a) Chloroplast genome chloroplast DNA (cpDNA) is also, known as plastid DNA (ptDNA)., 23. (c) Terminalisation is a process related to diakinesis., 24. (d) Formation of bivalents during meiosis occurs at, zygotene., 25. (a) When ribosomes move along mRNA, the tRNA and, synthesised polypeptide are transferred from A-site to Psite, the process is called translocation., 26. (b) (1-4-2-3): Ribosome, ER, Golgi complex and, Lysosomes., 27. (a) Wilting occurs when rate of transpiration is higher, than absorption., 28. (a) Osmotic pressure of a solution is more than that of, pure solvent., 29. (a) Stomata that can also open at night, present in, xerophytes. A plant species that is well-adapted to survive, in an environment with little liquid water is called a, xerophyte., 30. (c) Muddy water had macro nutrients dissolved in it., 31. (a) If a plant material is dried and burnt in a crucible, the, residue would contain oxides and carbonates of about ten, elements., 32. (d) 680–700 nm red drop in wavelength., 33. (c) In cyclic photophosphorylation, PH I donates electrons, to NADP., 34. (d) Light reaction of photosynthesis form NADPH2, O2, and ATP., 35. (a) Roots can take oxygen when it is in gaseous form.

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89, , Mock Test-3, , 36. (c) Phosphoglucose, a glycolytic enzyme, is an essential, enzyme in all tissues., 37. (d) Moss, 38. (a) Ergotism is caused by Claviceps., 39. (c) A pair of fructose and glucose is monosaccharide., 40. (c) Beauty vitamin is vitamin E. Vitamin E is a vital, nutrient for good health, and it's found in a wide variety of, foods and supplements., 41. (a) ATP is a nucleotide., , 58. (b) Colour-blindness is the sex linked character in human, inheritance., 59. (d) The crustacean parasite, which changes the sex of the, host crab, from male to female (castration) is Sacculina., 60. (b) X + 2A is a female, 61. (b) Homo neanderthalensis, 62. (c) Fitness is the end result of the ability to adapt and get, , 42. (b) Cytochrome is iron-containing porphyrin pigment., 43. (d) None of these, 44. (d) The chief function of lymph nodes in mammalian, body is to collect and destroy pathogens., 45. (c) They feed on dry seeds and do not require drinking, water. And they excrete very concentrated urine and do, not use water to regulate body temperature., 46. (c) Convoluted tubules, 47. (b) Black bands of myofibrils are known as anisotropic, band., 48. (c) The muscle fatigue occurs due to accumulation of, lactic acid. Lactic acid is an alpha-hydroxy acid (AHA), , selected by nature., 63. (c) Bronchial asthma and allergic reactions are mainly, caused due to air-borne spores of fungi and bacteria,, pollen grains, fur, hairs, etc., 64. (c) A colourless, odourless, non-irritant highly toxic CO, impairs respiratory system., 65. (d) Carbon dioxide; Oxygen, 66. (d) In heterolactic acid fermentation, sometimes referred to, as the, , phosphoketolase, , pathway,, , the, , products of, , fermentation is only one molecule of lactic acid., , due to the presence of carboxyl group adjacent to the, hydroxyl group. It is used as a synthetic intermediate in, , 67. (d) Both: antheraea paphia and Antheraea assama, , many organic synthesis industries and in various, , 68. (d) The aquaculture involves the production of aquatic, , biochemical industries. The conjugate base of lactic acid, is called lactate., 49. (a) Anti-ageing hormone melatonin is produced by the, pineal body., 50. (a) Parathormone causes hypercalcaemia. Hypercalcaemia, is a condition in which the calcium level in your blood is, , plants, shrimps, prawns, fishes and oysters., 69. (b) Red wine is wine., 70. (b) Green muffler is useful against noise pollution., 71. (d) Plague is a contagious bacterial disease characterised, by fever and delirium, typically with the formation of, buboes ( bubonic plague ) and sometimes infection of the, , above normal., , lungs ( pneumonic plague )., , 51. (a) Because retina of owls contains only rods., 52. (b) Antibacterial agent present in tears is lysozyme., , 72. (c) Deciduous forests occur in temperate zones., , 53. (b) Advanced, , 73. (c) Migratory birds belong to multinational resources., , 54. (d) Adnation and connation among floral parts, floral, , 74. (c) The animals which are in danger or extinction of, which is also possible are known as endangered., , symmetry and position of ovary., 55. (d), , 200, , secondary spermatocytes, , will, , form 400, , spermatozoa., 56. (d) Multiplication phase, growth phase and maturation, , 75. (a) The species vulnerable may become the endangered, category., 76. (b) Mammals group of vertebrates comprises the highest, number of endangered species., , phase., 57. (c) “Like begets like” is due to inheritance., , 77. (c) Sewage water can be purified for recycling with the, action of microorganisms.

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Biology, , 90, , 78. (a) Strontium-90 is the most dangerous radioactive, pollutant to Homo sapiens., , 84. (a) The leopard or ’tendwa' is zoologically named as, Panthera tigris., , 79. (d) Dolly (a sheep), , 85. (a) In elephants the tusks are incisors., , 80. (b) Producing a giant mouse in the laboratory was, possible through gene manipulation., , 86. (b) A-2, B-5, C-1, D-4, E-3, , 81. (d) In transgenics, expression of transgene in target tissue, is determined by reporter., , 88. (a) A-4, B-5, C-1, D-3, D-2, , 82. (b) Ukraine (1986) and Bhopal (1984), , 90. (c) A-3, B-4, C-2, D-5, , 83. (d) America (USA), , 87. (b) A-1, B-3, C-2, D-5, E-4, , 89. (d) A-2, B-5, C-4, D-1, E-3

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91, , Mock Test-4, , Mock Test-4, 1., , Who is famous in the field of palaeobotany?, a. Bose J.C., b. Birbal Sahni, c. Metha K.C., d. Maheshwari P, , 2., , Who wrote the book 'Genetics and Origin of Species', a. R.A. Fisher, b. G.L. Stebbins, c. Th. Dobzhansky, d. J.B.S. Haldane, , 3., , The recapitulation theory or biogenetic law was proposed, by:, a. Weismann, b. Mendel, c. Ernst Haeckel, d. Von Baer, , 4., , Adaptation of a species is its, a. Ecdysis, b. Metamorphosis, c. Acquired character, d. Hereditary character, , 5., , Which one of the following sequences was proposed by, Darwin and Wallace for organic evolution?, a. Variations, natural selection, overproduction, constancy, of population size., b. Overproduction, variations, constancy of population, size, natural selection., c., Variations,, constancy, of population, size,, overproduction, natural selection., d. Overproduction, constancy of population size,, variations, natural selection., , 6., , 7., , 8., , 9., , Virion refers to:, a. Capsid of virus, c. Nucleic acid of virus, , b. Dead virus, d. Complete from of virus, , Viruses have:, a. Chromosomes, b. Ribosomes, c. Nucleic acids, d. Carbohydrates, The virus responsible for AIDA is an example of a (an):, a. Adeno virus, b. Mosaic virus, c. T-even virus, d. Retrovirus, Starfish belongs to:, a. Porifera, b. Coelenterata, c. Echinodermata, d. Arthropoda, , 10. Natural pearls belong to:, a. Arthropoda, b. Protozoa, c. Mollusca, d. Echinodermata, 11. The peculiar pungent smell of cockroach is produced by, the secretions of:, a. Pheromones, b. Flame cells, c. Abdominal glands, d. Cervical glands, 12. Circular DNA is seen ina. Higher plants, b. Bacteria, c. Fungus, d. Viruses, 13. The visible appearance of growths of bacteria seen on, laboratory culture media are called:, a. A thallus, b. Spores, c. Colonies, d. Tissues, 14. Bacteria resemble:, a. Nostoc species, b. Mitochondria, c. Chlamydomonas, d. None of the above, 15. Exalbuminous seeds are found ina. Tamarindus indica, b. Cicer arietinum, c. Ricinus communis, d. Both in a. and b., 16. Endospermic seeds are found in:, a. Carica papaya, b. Dolichos lablab, c. Gourd, d. Pisum sativum, 17. In a leaf protoxylem faces towards, a. Upper epidermis, b. Lower epidermis, c. Centre of vascular bundle, d. None correct, 18. In a normal dicot leaf the phloem in the midrib faces, towards, a. Upper epidermis, b. Lower epidermis, c. Centre of vascular bundle, d. None correct, 19. Pneumatic bones are found in:, a. Flying fish, b. House lizard, c. Pigeon, d. Frog’s tadpole, 20. In the vertebral column of a child number of vertebrae is:, a. 30, b. 31, c. 32, d. 33

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Biology, , 92, , 21. In the eukaryotic cells the transcription of RNA takes, place in the:, a. Euchromatin region, b. Heterochromatin region, c. Nucleolus, d. Cytoplasm, 22. Which one of the following does not show a circular, DNA?, a. Bacterial cell, b. Nucleus, c. Mitochondrion, d. Chloroplast, 23. A temporary suppression of cell division activity in cell, populations can be brought about by:, a. Colchicine treatment, b. Radiating them with ultraviolet rays, c. Reducing carbohydrate supply, d. Treating them with hormones, 24. Phragmoplast is:, a. Plastid capable of fragmentation, b. Plastid capable of duplication, c. Cell plate formed by ER and products of dictyosome, (secretory vesicles) during cytokinesis, d. Cell plate formed by ER, dictyosome, (secretory, vesicles) and portion of spindle fibres, 25. The presence of signal peptide is characteristic of which, protein when they are synthesised:, a. Tubulin, b. Actin, c. Flagellin, d. Insulin, 26. Which of the following statement is true about protein, synthesis over ribosome?, a. All amino acids first enter A site and then P site, b. All amino acids first enter P site and then A site, c. All but the first amino acids amino acid first enter A, site then P site, d. All but the last amino acid first enter A site then P site, 27. pH of phloem sap is:, a. 8.7–9.6, b. 7.5–8.6, c. 5.0–6.0, d. 2.4–0.8, 28. Amount by which water potential is reduced due to, presence of solute is called, a. pressure potential, b. solute potential, c. matric potential, d. None of these, 29. For growth of which of the following sodium is required, a. Lycopersicon esculentum, b. Ziziphus, c. Nigella sativa, d. Atriplex, , 30. Which of the following shows that metabolic energy is, required in the absorption of ions?, a. More ions absorption in presence of oxygen, b. Less absorption of ions in presence of oxygen, c. More ions absorption in presence of ATP, d. More ions absorption in presence of NAD, 31. Which of element is given in less quantity to develop, attractive colour to apple?, a. Zinc, b. Hydrogen, c. Nitrogen, d. Chlorine, 32. Which of the following correctly ranks the following, structures terms of size, largest to smallest? Chloroplast, (C), Mysophyll cell (MC), Photosystem (P), chlorophyll, molecule (M), thylakoid (Y), a. P–MC–T–C–M, b. MC–C–T–M–P, c. P–MC–C–T–M, d. MC–T–P–C–M, 33. Which elements are essential for photolysis of water?, a. Mg and P, b. Zn and Iodine, c. Mn and Chlorine, d. Ca and Chlorine, 34. Robinson's ester is, a. Glucose–1, 6–diphosphate, b. Glucose–6–phosphate, c. Fructose–6–phosphate, d. None of the above, 35. Which of the following is directly affected by deficiency, of Fe?, a. Glycolysis, b. Calvin cycle, c. DPD of cell, d. Oxidative photophosphorylation, 36. Fruits keep better in refrigeration, this is due to, a. Non-availability of O2, b. Absence of moisture, c. Accumulation of O2, d. Inactivation of respiration, 37. Green plants without root, stem and leaves, but with a, simple filamentous plant body is called, a. Thallus, b. Mycelium, c. Hyphae, d. Corm, 38. When the phloem and cambium are present on both sides, of xylem, the vascular bundle is called, a. Concentric, b. Bicollateral, c. Radial, d. Collateral

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93, , Mock Test-4, , 39. Intracellular energy wheel is:, a. Glycolysis, b. Krebs cycle, c. Lipogenesis, d. None of these, 40. We obtain major supply of energy from glucose via, a. Alcoholic fermentation, b. Krebs cycle, c. Lactic acid fermentation d. Fat metabolism, 41. A clot of blood contains, a. Prothrombin, c. Fibrin, , b. Thrombin, d. Fibrinogen, , 42. An anticoagulant used for preventing clotting in vitro is, sodium oxalate. It prevents clot formation by:, a. Inhibiting clotting factor VIII activity, b. Combining with cations in the blood, c. Getting itself deposited over the surface of RBC, d. Blocking the fibrinogen activity, 43. Which of the metallic ions is essential for blood clotting?, a. Na + +, , b. Ca + +, , c. K +, , d. Fe + +, , 44. RBC contain an enzyme important for the transport of, carbon dioxide, the enzyme is:, a. Carboxypeptidase, b. Carbonic anhydrase, c. Glucose phosphatase, d. ATPase, 45. Natural anticoagulants are:, a. Heparin and hirudin, b. Ptyalin, c. Histamines, d. Acetylcholine, 46. Which one of the following correctly explains the function, of a specific part of human nephrons?, a. Afferent arteriole—Carries blood away from the, glomerulus towards renal vein., b. Podocytes—Create minute spaces (slit pores) for the, filteration of blood into the Bowman’s capsule., c. Henle’s loop—Most reabsorption of the major, substances from the glomerular filtrate., d. Distal convoluted tubule—Reabsorption of K+ ions into, the surrounding blood capillaries., 47. Uricotelic mode of passing out nitrogenous wastes is, found in:, a. Insects and amphibians, b. Reptiles and birds, c. Birds and annelids, d. Amphibians and reptiles, , 48. Which one of the following statements is correct with, respect to kidney function regulation?, a. During summer when body loses lot of water by, evaporation, the release of ADH is suppressed., b. When someone drinks lot of water, ADH release is, suppressed., c. Exposure to cold temperature stimulates ADH release., d. An increase in glomerular blood flow stimulates, formation of Angiotensin II., 49. The functional unit of the contractile system in the striped, muscle is:, a. Z–band, b. A–band, c. Myofibril, d. Sarcomere, 50. The longest visceral muscle cell is present in, a. Vas deferens, b. Normal uterus, c. Pregnant uterus, d. Abdomen, 51. Osteoporosis is caused by:, a. Over active thyroid, c. Deficiency of calcium, , b. Over active parathyroid, d. Deficiency of vitamin D, , 52. Which is the hormone of ovulation?, a. Estrogens, b. Progesterone, c. Luteinizing hormone, d. FSH, 53. Sensation of pain in stomach is due to:, a. Interoceptors, b. Exteroceptors, c. Proprioceptors, d. Teleceptors, 54. Tubes that connect the buccopharyngeal cavity with the, auditory capsule are:, a. Ampullae, b. Inguinal canals, c. Eustachian tubes, d. External auditory meatus, 55. Osphradium of Pila globosa, the apple pond snail, is a:, a. Photoreceptor, b. Chemoreceptor, c. Thermoreceptor, d. Tangoreceptor, 56. In the life cycle of every plant eggs and antherozoids are, produced by:, a. Mitosis, b. Meiosis, c. Spore formation, d. Fertilisation, 57. In angiosperms double fertilisation represents:, a. Fusion between two polar nuclei with one egg nucleus, b. Fusion between two sperm nucleus with egg and, another sperm nucleus with two polar nuclei, c. Fusion between two sperm nuclei with one egg, d. Fusion between one sperm nucleus with two eggs

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Biology, , 94, , 58. The placenta of human beings belongs to the category of:, a. Endotheliochorial, b. Epitheliochorial, c. Syndesmochorial, d. Haemochorial, , 67. Decolouration of lead and silver paints is caused due to:, a. Sulphur dioxide, b. Carbon dioxide, c. Hydrogen sulphide, d. Ozone, , 59. Termination of gastrulation is marked by:, a. Obliteration of blastocoel, b. Closure of blastocoel, c. Closure of neural tube, d. Obliteration of archenteron, , 68. The most immediate and acute effect of noise pollution is:, b. High blood pressure, a. Headache, c. Low blood pressure, d. Impairment of hearing, , 60. A man is haemophiliac, this indicates that, a. Inherited the condition from his father, b. Is afraid of sight of blood, c. Inherited the condition from his mother, d. Carrying parasite in his blood, 61. Genes located on Y-chromosome are:, a. Mutant genes, b. Sex-linked genes, c. Autosomal genes, d. Holandric genes, 62. Mark the incorrect statement:, a. In human beings sex is determined by XX–XY mode, b. Method of sex determination in birds is XX–XO mode, c. Freemartins found among cattle are sterile females, d. Edward’s syndrome is due to trisomy of the 18th, chromosome, 63. Haemolytic jaundice is caused due to dominant gene but, only 10% of the people actually develop this disease. A, heterozygous man marries a homozygous normal woman., What proportion of the children would be expected to, develop to haemolytic disease?, a. 1/5, b. 1/10, c. 1/15, d. 1/20, 64. A high density of elephant population in an area can result, in:, a. Predation on one another, b. Mutualism, c. Intraspecific competition, d. Interspecific competition, 65. Discontinuous variations are:, a. Essential features, b. Acquired character, c. Non-essential changes, d. Mutations, 66. The cranial capacity was largest among the:, a. Peking man, b. African man, c. Java ape man, d. Neanderthal man, , 69. Identify the bacterium that on fermentation of whey, produces lactic acid:, a. Acetobacter spp, b. Brevibacterium flavum, c. Lactobacillus lactis, d. Lactobacillus prueckii, 70. Alkaline proteases are produced most commonly with the, help of:, a. Species of Bacillus. (e.g., B. licheniformis, B., amyloliquefaciens, B. megaterium and B pumilus)., b. Species of Streptomyces (e.g., S. fradiae, S. griseus,, and S. rectus), c. Some fungi (e.g., Aspergillus niger, A. sojae, A. oryzae, and A flavus)., d. They cannot be produced with the help of, microorganisms., 41. The Gir is a type of, a. milch breed, c. mule breed, , b. drought breed, d. All of these, , 72. Which of the following is related with the breed NiliRavi?, a. Cow, b. Pig, c. Sheep, d. Buffalo, 73. Chokla is the breed of, a. goat, b. sheep, c. cow, d. poultry, 74. Which of the following is not a mental disorder?, a. Epilepsy, b. Neurosis, c. Psychosis, d. Plague, 75. The crystal of lead zirconate is a key component of:, a. Electroencephalography b. Electrocardiography, c. Magnetoencephalography d. Sonography, 76. Plants that grow on sea shores will show the characters:, a. Like xerophytes, b. Like hydrophytes, c. Like mesophytes, d. Like submerged plants, 77. Mark the xerophytes among the following:, a. Brassica, b. Cuscuta, c. Capparis, d. Hydrilla

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95, , Mock Test-4, , 78. Anthropogenic extinction means the extinct of species, from surface of earth that is due to, a. Change in season, b. Effects of meteors, c. Human activities, d. None of these, 79. Asiatic lion (Panthera leo persica) is now:, a. Endangered, b. Extinct in wild, c. Vulnerable, d. Critically endangered, 80. Generally speaking, the atmosphere in big cities is, polluted most by:, a. Radioactive fallout, b. Household waste, c. Automobile exhaust, d. Pesticide residues, 81. The excessive discharge of fertilisers into water bodies, results in:, a. Growth of fish, b. Death of hydrophytes, c. Eutrophication, d. Silt, 82. In transgenics, expression of transgene in target tissue is, determined by:, a. Enhancer, b. Transgene, c. Promoter, d. Reporter, 83. In cloning of cattle, a fertilised egg is taken out of, mother’s womb and:, a. From this up to eight identical twins can be produced., b. The egg is divided into four pairs of cells which are, implanted into the womb of other cows., c. In the eight cell stage, the cells are separated and, cultured until small embryos are formed which are, implanted into the womb of other cows., d. In the 18 cell stage, the individual cells are separated, under electrical field for further development in culture, media., 84. An example of gene therapy is:, a. Production of injectable hepatitis B vaccine, b. Production of vaccines in food crops like potatoes, which can be eaten, c. Introduction of gene for adenosine deaminase in, persons suffering from severe combined immune, deficiency (SCID), d. Production of test tube babies by artificial insemination, of unfertilised eggs., 85. Agarose extracted from sea weeds finds use in:, a. Gel electrophoresis, b. Spectrophotometry, c. Tissue culture, d. PCR, , 86. Match Column-I with Column-II and select the correct, option from the codes given below., Column I, , Column II, , (A) Psilopsida, , 1. Psilotum, , (B) Lycopsida, , 2. Equisetum, , (C) Sphenopsida, , 3. Selaginella, , (D) Pteropsida, , 4. Dryopteris, , a. A-1, B-2, C-3, D-4, b. A-1, B-4, C-3, D-2, c. A-1, B-3, C-2, D-4, d. A-1, B-3, C-4, D-2, 87. Match the following Columns., Column I, , Column II, , (A) Typical, vertebrae, , 1. Known as lumbar vertebra, , (B) Atlas, , 2. Formed by union of caudal, vertebrae, , th, , (C) 8 vertebrate, , 3. Consists of 5 parts–centrum,, neural arch, neural spine,, zygapophyses, transverse, processes, , th, , (D) 9 vertebrate, , 4. 1st vertebra, , (E) Urostyle, , 5. Known as sacral vertebrae, , a. A-1; B-2, C-3, D-4, E-5, b. A-3; B-4, C-1, D-5, E-2, c. A-5; B-4, C-3, D-2, E-1, d. A-3; B-1, C-5, D-2, E-4, 88. Match the compounds given in Column I with number of, carbon atoms present in them, which are listed under, Column II. Choose the answer which gives the correct, combination of alphabets of the two columns., Column I, , Column II, , (A) Oxaloacetate, , 1. 6 C compound, , (B) Phosphoglyceraldehyde, , 2. 5 C compound, , (C) Isocitrate, , 3. 4 C compound, , (D) α-ketoglutarate, , 4. 3 C compound, 5. 2 C compound, , a. A-4; B-5, C-2, D-3, b. A-3; B-4, C-1, D-2, c. A-3; B-5, C-1, D-2, d. A-2; B-4, C-1, D-5

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Biology, , 96, , 6., , (d) Virion refers to complete form of virus., , 7., , (c) Viruses has nucleic acids., , 2. Liver, 3. Heart, 4. Kidney, 5. Lungs, a. A-3, B-5, C-4, D-1, b. A-3, B-4, C-5, D-1, c. A-4, B-2, C-1, D-5, d. A-4, B-3, C-1, D-5, 90. Match the following Columns., Column I, Column II, (A) Binary fission, 1. Algae, (B) Zoospore, 2. Amoeba, (C) Conidium, 3. Hydra, , 8., , (d) The virus responsible for AIDA is an example of a, retrovirus., , 9., , (c) Echinodermata is a phylum of marine invertebrates, which includes starfishes, sea urchins, brittle stars,, crinoids, and sea cucumbers. They have five-fold radial, symmetry, a calcareous skeleton, and tube feet operated, by fluid pressure., , (D) Budding, (E) Gemmules, a. A-1, B-4, C-5, D-3, E-2, c. A-2, B-4, C-3, D-5, E-1, Answers and Solutions, , 12. (b) Circular DNA is seen in bacteria., , 89. Match the following Columns., Column I, Column II, (A) Bicuspid, 1. Brain, (B) Nephron, (C) Alveoli, (D) Cerebrum, , 10. (c) Natural pearls belong to Mollusca., 11. (a) The peculiar pungent smell of cockroach is produced, by the secretions of pheromones., , 4. Penicillium, 5. Sponge, b. A-2, B-1, C-4, D-3, E-5, d. A-4, B-1, C-3, D-5, E-2, , 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , b, , c, , c, , d, , d, , d, , c, , d, , c, , c, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , a, , b, , c, , a, , d, , a, , a, , b, , c, , d, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , a, , b, , a, , d, , d, , c, , b, , b, , d, , c, , 31., , 32., , 33., , 34, , 35., , 36., , 37., , 38., , 39., , 40., , c, , b, , c, , b, , d, , d, , a, , b, , b, , b, , 41., , 42., , 43., , 44., , 45., , 46., , 47, , 48., , 49., , 50., , c, , b, , b, , b, , a, , b, , b, , b, , d, , c, , 51., , 52., , 53., , 54., , 55., , 56., , 57., , 58., , 59., , 60, , b, , c, , a, , c, , b, , a, , b, , d, , a, , c, , 61., , 62., , 63., , 64., , 65., , 66., , 67., , 68., , 69., , 70., , d, , b, , c, , c, , d, , d, , c, , d, , d, , a, , 71., , 72., , 73., , 74., , 75., , 76., , 77., , 78., , 79., , 80., , a, , d, , b, , d, , d, , a, , c, , c, , a, , c, , 81., , 82., , 83., , 84., , 85., , 86., , 87., , 88., , 89., , 90., , c, , d, , c, , c, , a, , c, , b, , b, , b, , d, , 13. (c) The visible appearance of growths of bacteria seen on, laboratory culture media are called colonies., 14. (a) Bacteria resembles Nostoc species., 15. (d) Both: Tamarindus indica and Cicer arietinum., 16. (a) Endospermic seeds are found in Carica papaya., 17. (a) Upper epidermis, 18. (b) Lower epidermis, 19. (c) Pneumatic bones are found in pigeon., 20. (d) In the vertebral column of a child number of vertebrae, is 33., 21. (a) In the eukaryotic cells the transcription of RNA takes, place in the euchromatin region., 22. (b) Nucleus, , 1., , (b) Birbal Sahni is famous in the field of palaeobotany., , 23. (a) A temporary suppression of cell division activity in, cell populations can be brought about by colchicine, treatment., 24. (d) Cell plate formed by ER, dictyosome, (secretory, vesicles) and portion of spindle fibres., , 2., , (c) Theodosius Dobzhansky, who wrote the book, ‘Genetics and Origin of Species’., , 25. (d) The presence of signal peptide is characteristic of, which protein when they are synthesised insulin., , 3., , (c) The recapitulation theory or biogenetic law was, proposed by Ernst Haeckel., , 26. (c) All but the first amino acids first enter A site then P, site, , 4., , (d) Adaptation of a species is its hereditary character., , 27. (b) 7.5–8.6, , 5., , (d) Overproduction, constancy of population size,, variations, natural selection sequences was proposed by, Darwin and Wallace for organic evolution., , 28. (b) Solute potential, 29. (d) Atryplex

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97, , Mock Test-4, , 30. (c) More ions absorption in presence of ATP., 31. (c) Nitrogen is given in less quantity to develop attractive, colour to apple., 32. (b) MC–C–T–M–P, 33. (c) Mn and Chlorine are essential for photolysis of water., 34. (b) Robinson's ester is Glucose–6–phosphate., , 54. (c) Tubes that connects the buccopharyngeal cavity with, the auditory capsules are eustachian tubes., 55. (b) Osphradium of Pila globosa, the apple pond snail, is a, chemoreceptor., 56. (a) In the life cycle of every plant eggs and antherozoids, are produced by mitosis., , 35. (d) Oxidative photophosphorylation, , 57. (b) Fusion between two sperm nucleus with egg and, another sperm nucleus with two polar nuclei., , 36. (d) Fruits keep better in refrigeration, this is due to, inactivation of respiration., , 58. (d) The placenta of human beings belongs to the category, of haemochorial., , 37. (a) Green plants without root, stem and leaves, but with a, simple filamentous plant body is called thallus., , 59. (a) Obliteration of blastocoel., , 38. (b) When the phloem and cambium are present on both, sides of xylem, the vascular bundle is called bicollateral., 39. (b) The citric acid cycle (also called as Krebs cycle or, tricarboxylic acid cycle) takes place in the mitochondria, and is an integral part for the generation of adenosine., 40. (b) Krebs cycle, , 60. (c) Inherited the condition from his mother., 61. (d) Genes located on Y-chromosome are holandric genes., 62. (b) Method of sex determination in birds is XX–XO, mode., 63. (c) 1/15, 64. (c) A high density of elephant population in an area can, result in intraspecific competition., , 41. (c) A clot of blood contains fibrin., 65. (d) Mutations, 42. (b) An anticoagulant used for preventing clotting in vitro, is sodium oxalate. It prevents clot formation by combining, with cations in the blood., , 66. (d) The cranial capacity was largest among the, neanderthal man., , 43. (b) Ca++ metallic ions is essential for blood clotting., , 67. (c) Hydrogen sulphide, , 44. (b) RBC contain an enzyme important for the transport of, carbon dioxide, the enzyme is carbonic anhydrase., 45. (a) Heparin and hirudin are natural anticoagulants., 46. (b) Podocytes -.Create minute spaces (slit pores) for the, filtration of blood into the Bowman’s capsule., 47. (b) Uricotelic mode of passing out nitrogenous wastes is, found in reptiles and birds., 48. (b) When someone drinks lot of water, ADH release is, suppressed., , 68. (d) Impairment of hearing., 69. (d) Lactobacillus prueckii, 70. (a) Species of Bacillus. (e.g., B. licheniformis, B., amyloliquefaciens, B. megaterium, and B. pumilus)., 71. (a) Milch breed, 72. (d) Buffalo, 73. (b) Chokla is the breed of sheep., , 49. (d) The functional unit of the contractile system in the, striped muscle is sarcomere., , 74. (d) Plague is a contagious bacterial disease characterised, by fever and delirium, typically with the formation of, buboes ( bubonic plague ) and sometimes infection of the, lungs ( pneumonic plague )., , 50. (c) The longest visceral muscle cell is present in pregnant, uterus., , 75. (d) Sonography the analysis of sound using an instrument, which produces a graphical representation of its, component frequencies., , 51. (b) Over active parathyroid, , 76. (a) Like xerophytes, , 52. (c) Luteinizing hormone is the hormone of ovulation., , 77. (c) Capparis, , 53. (a) Sensation of pain in stomach is due to interoceptors., , 78. (c) Human activities

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Biology, , 98, , 79. (a) Endangered, 80. (c) Automobile exhaust, 81. (c) Eutrophication excessive richness of nutrients in a lake, or other body of water, frequently due to run-off from the, land, which causes a dense growth of plant life., , 85. (a) Gel electrophoresis is a laboratory method used to, separate mixtures of DNA, RNA, or proteins according to, molecular size., 86. (c) A-1, B-3, C-2, D-4, , 82. (d) Reporter, , 87. (b) A-3; B-4, C-1, D-5, E-2, , 83. (c) In the eight cell stage, the cells are separated and, cultured until small embryos are formed which are, implanted into the womb of other cows., 84. (c) Introduction of gene for adenosine deaminase in, persons suffering from severe combined immune, deficiency (SCID)., , 88. (b) A-3; B-4, C-1, D-2, 89. (b) A-3, B-4, C-5, D-1, 90. (d) A-4, B-1, C-3, D-5, E-2

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99, , Mock Test-5, , Mock Test-5, 1., , Photophosphorylation was discovered by, a. Arnon D.I., b. Hill R., c. Calvin M., d. Ruben and Kamen, , 2., , First experiment related to the method of hydroponics, were done by:, a. Knop, b. Hill, c. Arnon, d. Sachs, , 3., , Indicate the completely correct statement about human, races., a. All human races can interbreed but most will produce, infertile young ones, b. Different human races cannot interbreed, c. Some human races can interbreed, d. All human races can interbreed and produce fertile, offspring, , 4., , Correct sequence of stages in the evolution of the modern, man, (Homo sapiens), is:, a. Neanderthal man, Australopithecus, Cro-Magnon man,, Homo erectus, modern man, b. Australopithecus, Homo erectus, Neanderthal man, CroMagnon man, modern man, c. Homo erectus, Australopithecus, Neanderthal man, CroMagnon man, modern man, d. Australopithecus, Neanderthal man, Cro-Magnon man,, Homo erectus, modern man, , 5., , Viroids have:, a. Single stranded RNA not enclosed by protein coat, b. Single stranded DNA not enclosed by protein coat, c. Double stranded DNA enclosed by protein coat, d. Double stranded RNA enclosed by protein coat, , 6., , Prions are pathogens that are thought to consist solely of:, a. RNA, b. DNA, c. Proteins, d. ∅ ×174, , 7., , D.C. Gajdusek was awarded the Nobel Prize for discovery, of prion-based diseases in:, a. 1976, b. 1979, c. 1980, d. 1995, , 8., , Class Crustacea differs from Insecta in having:, a. Two pairs of antennae, b. Joint feet, c. Chitinous, d. None of these, , 9., , Which insect is useful for humans?, a. Periplaneta, b. Musca, c. Bombyx, d. Mosquitoes, , 10. Milk spoilage is due to:, a. Aspergillus, b. Pseudomonas, c. Lactobacillus, d. Staphylococcus, 11. Cyanobacteria, unlike other types of bacteria that, photosynthesise:, a. Do not give off oxygen, b. Give off oxygen, c. Do not have chlorophyll, d. Do not have a cell-wall, 12. Which of the following is not a characteristic of the, eubacteria?, a. Prokaryotic, b. Have peptidoglycan cell wall, c. Have the same shape, d. Grow by binary fission, 13. What is perisperm?, a. Remnent of nucellus, b. Caruncle, c. Hilum, d. Kernel, 14. Scutellum is a:, a. Endosperm of gymnosperms, b. Shield-shaped cotyledon of monocots, c. Protective covering of radicle, d. Protective covering of plumule, 15. Palisade tissue is present on both sides of leaf on:, a. Nerium, b. Eucalyptus, c. Both a. and b., d. Wheat, 16. Epistomatic leaf is of, a. Nelumbo nucifera, b. Nymphaea spp., c. Victoria regia, d. All of the above, 17. Teeth in frog are:, a. Thecodont, b. Acrodont, c. Heterodont, d. Pleurodont, 18. Well-developed astragalus and calcaneum are found in:, a. Forelimb of frog, b. Forelimb of rabbit, c. Pectoral girdle, d. Hind limb of rabbit, 19. Lower jaw of mammals is formed of:, a. Dentaries, b. Maxillae, c. Angulars, d. Mentomeckelians

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Biology, , 100, , 20. Chromatin is composed of:, a. DNA and histones only, b. DNA and small amounts of RNA, c. DNA, small amount of RNA and histones, d. DNA, small amount of RNA, histones and non-histone, proteins, 21. Which cellular organelle of higher organisms contains, circular DNA?, a. Chloroplast, b. Peroxisome, c. Nucleus, d. Ribosome, 22. Crossing over occurs at, a. Two strand stage, b. Four strand stage, c. Three strand stage, d. One strand stage, 23. PMC or MMC are the best thing to demonstrate, a. Chromosome elongation b. Chiasmata, c. Cell fusion, d. Centrosomes, 24. Chromosome number is halved in which stage of meiosis?, a. Metaphase I, b. Anaphase I, c. Metaphase II, d. Telophase I, 25. The antibiotic that prevents entry of tRNA-amino acid, complex into a site of ribosome is:, a. Puromycin, b. Erythromycin, c. Rifamycin, d. Actinomycin-D, 26. The enzyme over ribosome is:, a. Adenylate cyclase, b. Phosphodiesterase, c. Signalase, d. Peptidyl transferase, 27. Of all the environmental factors which is the most, influential in determining the rate of transpiration?, a. Light, b. Water, c. Relative humidity of atmosphere, d. Temperature, 28. Loss of liquid water by guttation occurs through, a. hydathodes, b. stomata, c. cuticle, d. bark, 29. In the resting state of the neutral membrane, diffusion due, to concentration gradient, if allowed, would drive, a. K+ into the cell, b. K+ and Na+ out of the cell, c. Na+ into the cell, d. Na+ out of the cell, 30. Fertility of the soil in rice fields can be improved by, a. Gypsum, b. Sodium chloride, c. Blue-green algae, d. Rhizobium, , 31. The smallest angiospermic/dicot parasite is:, a. Arceuthobium, b. Wolffia, c. Cassytha, d. Rafflesia, 32. Which is the acceptor of CO2 in Calvin cycle?, a. RuBP, b. RuMP, c. PGA, d. REP, 33. In dark reaction of photosynthesis which is synthesised?, a. O2, b. ATP, c. NADPH2, d. PGA, 34. The organism in which Krebs cycle does not occur in, mitochondria is, a. Yeast, b. E. coli, c. Ulothrix, d. Mould, 35. A characteristic feature of ripening of some fruits (like, banana) is a sudden increase in respiration which is known, as:, a. Climacteric, b. Anthesis, c. Climatic, d. Photorespiration, 36. R.Q. is highest when respiratory substance is:, a. Fat, b. Maleic acid, c. Glucose, d. Protein, 37. The coralloid roots are the characteristics of, a. Ferns, b. Cycas, c. Angiosperms, d. None of these, 38. In which order of gymnosperms only fossils are present, a. Cycadofilicales, b. Ginkgoales, c. Coniferales, d. Gnetales, 39. Agar agar is commercially obtained from, a. Red algae, b. Green algae, c. Brown algae, d. Blue-green algae, 40. Simplest amino acid is:, a. Valine, c. Serine, , b. Glycine, d. Leucine, , 41. Deficiency of protein causes, a. Kwashiorkor, b. Anaemia, c. Pellagra, d. Goiter, 42. Blood group was discovered by, a. Mendel, b. Francis Nelson, c. Landsteiner, d. S. Miller, 43. Rh factor may be responsible for:, a. Turner’s syndrome, b. AIDS, c. Sickle cell anaemia, d. Erythroblastosis foetalis

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101, , Mock Test-5, , 44. Which chamber of a bird heart does oxygenated blood, enter first?, a. Right atrium, b. Right ventricle, c. Left ventricle, d. Left atrium, 45. Laboratory anticoagulant most commonly used is:, a. Sodium citrate, b. Potassium oxalate, c. Sodium chloride, d. Alum, 46. RBC of humans live for about 100–120 days, after which, they are broken down in the:, a. Liver, b. Spleen and liver, c. Thymus, d. Bone marrow, 47. Which organ is also referred to as the blood bank?, a. Liver, b. Spleen, c. Heart, d. Muscles, 48. The maximum amount of electrolytes and water (70–80%), from the glomerular filtrate is reabsorbed in which part of, the nephron?, a. Distal convoluted tubule, b. Proximal convoluted tubule, c. Descending limb of loop of Henle, d. Ascending limb of loop of Henle, 49. Which is not a part of nephron of a mammal?, a. Bowman’s capsule, b. Proximal convoluted tubule, c. Distal convoluted tubule, d. Pelvis, 50. The total number of muscles in the body of man is, a. 409, b. 439, c. 539, d. 639, 51. Mainly the skeletal muscles are named on the basis of, a. Direction of fibres in them, b. Their origin, insertion and action, c. Their location, size and number, d. All the above, 52. Renin is secreted by:, a. Cells of the stomach, b. Cells of the intestine, c. Cortical cells of kidney, d. Macula densa of DCT, 53. Human placenta produces several hormones but not one of, these, this is:, a. HCG, b. Progesterone, c. Relaxin, d. Estrogens, , 54. Acoustic spots in frogs are present in:, a. Osseous labyrinth, b. Carotid labyrinth, c. Membranous labyrinth, d. All of these, 55. In the chemistry of vision in mammals, the photosensitive, substance is called:, a. Sclerotin, b. Retinal, c. Rhodopsin, d. Melanin, 56. Which of the following use Radar systems in detecting the, target?, a. Birds, b. Bats, c. Dogs, d. Bats and dogs, 57. Ornithophilous flowers are usually:, a. Red, b. Yellow, c. Blue, d. White, 58. Which of the following is ornithophilous?, a. Strelitzia, b. Kigelia, c. Rafflesia, d. Helianthus, 59. In the course of co-evolution between flowers and, pollinators, beetles pollinated:, a. Primitive flowers, b. Advanced flowers, c. Spurred flowers, d. Coloured flowers, 60. Fertilised ovum in humans is transplanted in the uterus in, how many days after fertilisation?, a. 1 day, b. 7 days, c. 9 days, d. 11 days, 61. Reproduction in larval stage is called:, a. Paedogenesis, b. Neoteny, c. Parthenogenesis, d. None of these, 62. Who coined the term gene?, a. McClintock, b. Waldeyer, c. Johannsen, d. Mendel, 63. A functional unit of a gene is:, a. Muton, b. Recon, c. Cistron, d. Gene, 64. According to Bridges:, a. 2A + XXY is a superfemale, b. 2A + XXYY is a male, c. 2A + XY is male Drosophila, d. 2A + XXY is an intersex

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Biology, , 102, , 65. The reason why some mutations which are harmful do not, get eliminated from gene pool is that:, a. They have future survival value, b. They are recessive and carried by heterozygous, individuals, c. They are dominant and show up more frequently, d. Genetic drift occurs because of a small population, 66. A baby has been born with a small tail. It is the case, exhibiting:, a. Retrogressive evolution, b. Mutation, c. Atavism, d. Metamorphosis, 67. IF the Bengal tiger becomes extinct:, a. Hyenas and wolves will become scarce, b. The wild areas will be safe for man and domestic, animals, c. Its gene pool will be lost for ever, d. The populations of beautiful animals like deer’s will get, stabilised, 68. Asbestosis is caused due to:, a. Asbestos dust, b. Arsenic, c. Cotton dust, d. Stone grinders, 69. Atmosphere of big/metropolitan cities is polluted most by:, a. Automobile exhausts, b. Pesticide residue, c. Household waste, d. Radioactive fall out, 70. Gas released during Bhopal tragedy was:, a. Methyl isocyanate, b. Potassium isothiocyanate, c. Sodium isothiocyanate, d. Ethyl isothiocyanate, 71. Identify the incorrect statement regarding the production, of acid proteases:, a. They include rennin, which is an important enzyme, used in cheese production. Many other acid proteases are, used in medicines., b. The important fungal genera producing rennin are, Aspergillus, Candida, Coriolus, Endothia and Mucor., c. Rennin produced by Endothia parasitica was the first, rennin marketed commercially in 1967., d. The enzyme can be extracted after killing the fungus by, boiling., , 72. Identify the incorrect statement regarding the production, of acetone or butanol:, a. Acetone, butanol, butyric acid and isopropanol are, obtained by fermentation of starch, molasses, sucrose,, wood hydrolysates and pentoses using bacteria belonging, to the genus Clostridium., b. The biosynthetic steps involved in the production of, each of these compounds are interrelated, all of them, being derived from citric acid produced from either, glucose or fatty acid degradation., c. Contamination due to bacteriophages and lactobacilli is, a common problem in fermentation and therefore absolute, sterilisation is necessary., d. In India, alcohol produced from molasses is used as a, feedstock for production of acetone and butanol., 73. The mule is a, a. sterile male, c. sterile female, , b. fertile male, d. fertile female, , 74. Central Goat Research Institute (CGRI) is located at, a. Bhopal, b. Hisar, c. Uttar Pradesh, d. Rajasthan, 75. Which of the following forms the livestock?, a. Goat, b. Camel, c. Horse, d. All of these, 76. 11th July is observed as:, a. World Population Day, c. World Environment Day, , b. No Tobacco Day, d. World Health Day, , 77. BOD (Biological Oxygen Demand) is a measure of:, a. Industrial wastes poured into water bodies, b. Extent to which water is polluted with organic, compounds, c. Amount of CO inseparably combined with haemoglobin, d. Amount of O2 needed by green plants during night, 78. If the carbon dioxide were withdrawn from the biosphere, which organism would first experience negative effects?, a. Primary consumers, b. Producers, c. Secondary consumers, d. Tertiary consumers, 79. Which of the following is not an endangered species?, a. Peacock, b. Indian Rhino, c. Asiatic lion, d. Great Indian bustard, 80. Periyar Wildlife Sanctuary is located in:, a. Kerala, b. Tamil Nadu, c. Karnataka, d. Andhra Pradesh

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103, , Mock Test-5, , 81. According to IUCN Red List, what is the status of Red, Panda (Ailurus fulgens), a. Vulnerable species, b. Critically endangered species, c. Extinct species, d. Endangered species, 82. Metameric segmentation is the characteristic of:, a. Platyhelminthes and Arthropoda, b. Echinodermata and Annelida, c. Annelida and Arthropoda, d. Mollusca and Chordata., 83. National bird of India is:, a. Hornbill, c. Peacock (Pava cristatus), , 88. Match the following Columns., Column I, (A) Epilepsy, , Column II, 1. Degeneration, neurons, on, cerebral cortex, , (B) Alzheimer’s disease, , 2. Irregular, discharge, neurons, , (C) Parkinson’s disease, , 3. Decreased production, of acetylcholine, , (D) Huntington’s chorea, , 4. Death of dopamine, releasing neurons, , electrical, in, the, , 5. Formation of blood, clots in the brain, , b. Black swan, d. House sparrow, , 84. PCR and Restriction Fragment Length Polymorphism are, the methods for:, a. Genetic transformation, b. DNA sequencing, c. Genetic fingerprinting, d. Study of enzymes, , of, the, , a. A-5, B-4, C-3, D-1, b. A-2, B-3, C-1, D-4, c. A-2, B-3, C-4, D-1, d. A-2, B-4, C-3, D-1, 89. Match the following Columns., , 85. Which one of the following is an example of carrying out, biological control of pests/diseases using microbes?, a. Nucleopolyhedrovirus against white rust in Brassica., b. Bt-cotton to increase cotton yield., c. Lady bird beetle against aphids in mustard., d. Trichoderma spp. against certain plant pathogens., 86. Match Column I with Column II and select the correct, answer using the codes given below the lists., Column I, , Column II, , (A) Edible banana, , 1. Vivipary, , (B) Mangrove plants, , 2. Aleurone, , (C) Proteins in the grains, , 3. Endosperm, , (D) Reservoir of nutrients, , 4. Parthenocarpy, , a. A-1, B-2, C-3, D-4, c. A-4, B-1, C-2, D-3, , b. A-4, B-3, C-2, D-1, d. A-2, B-1, C-4, D-3, , 87. Make correct matching for the thoracic cavity., Column I, (A) Dorsal, (B) Ventral, (C) Lateral, (D) Posterior, a. A-3, B-1, C-2, D-4, b. A-3, B-4, C-1, D-2, c. A-4, B-1, C-2, D-3, d. A-3, B-4, C-2, D-1, , Column II, 1. Sternum, 2. Thoracic ribs, 3. Thoracic vertebrae, 4. Diaphragm, , Column I, (A) tRNA, , Column II, 1. Linking, acids, , of, , amino, , (B) mRNA, , 2. Transfer of, information, , genetic, , (C) rRNA, , 3. Nucleolar organising, region, , (D) Peptidyl transferase, , 4. Transfer of amino, acid form cytoplasm, of ribosome, , a. A-4, B-2, C-3, D-1, b. A-1, B-4, C-3, D-2, c. A-1, B-2, C-3, D-4, d. A-4, B-3, C-2, D-1, 90. Match the following Columns., Column I, (A) Rare species, , Column II, 1. No species, , (B) Vulnerable species, , 2. Facing a high risk of, extinction, , (C) Endangered species, , 3. Localised species, , (D) Extinct species, , 4. Species under threat, , a. A-3, B-4, C-2, D-1, b. A-1, B-2, C-3, D-4, c. A-4, B-3, C-2, D-1, d. A-1, B-3, C-4, D-2

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Biology, , 104, , Answers and Solutions, , 1., 2., , 1., , 2., , 3., , 4., , 5., , 6., , 7., , 8., , 9., , 10., , a, , d, , d, , b, , a, , c, , b, , a, , c, , c, , 11., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , 19., , 20., , b, , a, , a, , c, , c, , d, , b, , d, , a, , d, , 21., , 22., , 23., , 24., , 25., , 26., , 27., , 28., , 29., , 30., , a, , b, , b, , b, , a, , d, , c, , a, , c, , c, , 31., , 32., , 33., , 34, , 35., , 36., , 37., , 38., , 39., , 40., , a, , a, , d, , b, , a, , b, , b, , a, , a, , b, , 41., , 42., , 43., , 44., , 45., , 46., , 47, , 48., , 49., , 50., , a, , c, , d, , d, , a, , b, , b, , b, , d, , d, , 22. (b) Four strand stage, , 51., , 52., , 53., , 54., , 55., , 56., , 57., , 58., , 59., , 60, , b, , d, , c, , c, , c, , b, , a, , a, , a, , b, , 61., , 62., , 63., , 64., , 65., , 66., , 67., , 68., , 69., , 70., , 23. (b) Chaismata a point of overlap of paired chromatids at, which fusion and exchange of genetic material take place, , a, , c, , c, , c, , b, , c, , c, , a, , a, , a, , 71., , 72., , 73., , 74., , 75., , 76., , 77., , 78., , 79., , 80., , d, , b, , a, , c, , d, , a, , b, , b, , a, , a, , 81., , 82., , 83., , 84., , 85., , 86., , 87., , 88., , 89., , 90., , d, , c, , c, , c, , b, , c, , a, , c, , a, , a, , (a) Photophosphorylation was discovered by Arnon D I., (d) First experiment related to the method of hydroponics, were done by Sachs., , 3., , (d) All human races can interbreed and produce fertile, offspring., , 4., , (b) Australopithecus, Homo erectus, Neanderthal man, CroMagnon man, Modern man, , 5., 6., 7., 8., , (a) Single stranded RNA not enclosed by protein coat., (c) Prions are pathogens that are thought to consist solely, , hind limb of rabbit., 19. (a) Lower jaw of mammals is formed of dentaries., 20. (d) NA, small amount of RNA, histones and non-histone, proteins., 21. (a) Chloroplast: A double membrane-bound organelle, found in plant cells that contains chlorophyll and is, responsible for mediating photosynthesis., , during prophase of meiosis., 24. (b) Anaphase I, 25. (a) The antibiotic that prevents entry of tRNA-amino acid, complex into a site of ribosome is puromycin., 26. (d) The enzyme over ribosome is peptidyl transferase., 27. (c) Relative humidity of atmosphere., 28. (a) Loss of liquid water by guttation occurs through, hydathodes., 29. (c) In the resting state of the neutral membrane, diffusion, due to concentration gradient, if allowed, would drive Na+, into the cell., 30. (c) Blue-green algae, 31. (a) Arceuthobium is, parasite., , the smallest angiospermic/dicot, , of proteins., , 32. (a) RuBP is the acceptor of CO2 in Calvin cycle., 33. (d) PGA is synthesised in dark reaction of photosynthesis., , (b) 1979, (a) Class Crustacea differs from Insecta in having two, , 34. (b) E. coli, 35. (a) A characteristic feature of ripening of some fruits (like, , pairs of antennae., 9., , 17. (b) Acrodont are frog teeth., 18. (d) Well-developed astragalus and calcaneum are found in, , (c) Bombyx is useful for humans., , 10. (c) Lactobacillus a rod-shaped bacterium which produces, , banana) is a sudden increase in respiration which is known, as climacteric., 36. (b) R.Q. is highest when respiratory substance is maleic, , lactic acid from the fermentation of carbohydrates. A, bacterium normally found in the mouth, intestinal tract,, , acid., 37. (b) The coralloid roots are the characteristics of Cycas., , and vagina., , 38. (a) Cycadoficales, 39. (a) Red algae, A gelatinous material derived from algae,, , 11. (b) Cyanobacteria, unlike other types of bacteria that, photosynthesise give off oxygen., 12. (a) Prokaryotic, 13. (a) Remnant of nucellus is perisperm., 14. (c) Protective covering of radicle., 15. (c) Both Nerium and Eucalyptus., 16. (d) Nelumbo nucifera, Nymphaea sps and Victoria regia., , specifically used as a culture medium of bacteria and, other cells for diagnostic or laboratory experiments, purposes., 40. (b) Simplest amino acid is glycine., 41. (a) Deficiency of protein causes Kwashiorkor., 42. (c) Blood group was discovered by Landsteiner., 43. (d) Rh factor responsible for Erythroblastosis foetalis.

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105, , Mock Test-5, , 44. (d) Left atrium chamber of a bird heart does oxygenated, blood enter first., 45. (a) Laboratory anticoagulant most commonly used is, sodium citrate., 46. (b) Spleen and liver, 47. (b) Spleen, 48. (b) Proximal convoluted tubule, 49. (d) Pelvis, 50. (d) 639, 51. (b) Their origin, insertion and action, 52. (d) Renin is secreted by macula densa of DCT., 53. (c) Relaxin a polypeptide hormone produced by the, corpus luteum during pregnancy that causes the pelvic, ligaments and cervix to relax during pregnancy and, delivery., 54. (c) Acoustic spots in frogs are present in membranous, labyrinth., , 68. (a) Asbestosis is caused due to asbestos dust., 69. (a) Automobile exhausts, 70. (a) Methyl isocyanate, 71. (d) The enzyme can be extracted after killing the fungus, by boiling., 72. (b) The biosynthetic steps involved in the production of, each of these compounds are interrelated, all of them, being derived from citric acid produced from either, glucose or fatty acid degradation., 73. (a) The mule is a sterile male., 74. (c) Uttar Pradesh, 75. (d) Goat, Camel and Horse., 76. (a) World Population Day, , 55. (c) In the chemistry of vision in mammals, the, photosensitive substance is called rhodopsin., , 77. (b) BOD (Biological Oxygen Demand) is a measure of, , 56. (b) Bats use Radar systems in detecting the target., 57. (a) Ornithophilous flowers are usually red., , 78. (b) Producers, , 58. (a) Strelitzia is a genus of five species of perennial plants,, native to South Africa. It is the floral emblem of the City, , 79. (a) Peacock, , of Los Angeles; two of the species, Strelitzia nicolai and, Strelitzia reginae, are frequently grown as house plants., 59. (a) In the course of co-evolution between flowers and, pollinators, beetles pollinated primitive flowers., 60. (b) 7 days after fertilisation, fertilised ovum in humans is, , extent to which water is polluted with organic compounds., , 80. (a) Kerala, 81. (d) Endangered species, 82. (c) Metameric segmentation is the characteristic of, Annelida and Arthropoda., 83. (c) Peacock (Pavo cristatus), , transplanted in the uterus., 61. (a) Reproduction in larval stage is called paedogenesis., , 84. (c) Genetic fingerprinting, , 62. (c) Johannsen coined the term gene., , 85. (b) Bt-cotton to increase cotton yield., , 63. (c) A functional unit of a gene is cistron., 64. (c) 2A + XY is male Drosophila., , 86. (c) A-4, B-1, C-2, D-3, , 65. (b) They are recessive and carried by heterozygous, individuals., 66. (c) A baby has been born with a small tail. It is the case, exhibiting atavism., 67. (c) Its gene pool will be lost forever., , 87. (a) A-3, B-1, C-2, D-4, 88. (c) A-2, B-3, C-4, D-1, 89. (a) A-4, B-2, C-3, D-1, 90. (a) A-3, B-4, C-2, D-1