Page 1 : BENAKATTI PU COLLEGE, BAGALKOT ROAD, VIDYA NAGAR, VIJAYAPURA, , NEET / IIT JEE, , Date : 02/03/2022, TEST ID: 1791, Time : 01:00:00, CHEMISTRY, Marks : 60, 2.STRUCTURE OF ATOM,3.CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES, Single Correct Answer Type, 1. The maximum number of sublevels, orbitals, and electrons in 𝑁-shell of an atom are, respectively, a) 4, 12, 32, b) 4, 16, 30, c) 4, 16, 32, d) 4, 32, 64, 2. Rutherford’s experiment on the scattering of, α −particles showed for the first time that the, atom has, a) Electrons, b) Protons, c) Nucleus, d) Neutrons, 3. Which of the following has the maximum, number of unpaired electrons?, a) Mg 2+, b) Ti3+, c) Fe2+, d) V 3+, 4. Calculate the wavelength (in nanometer), associated with a proton moving at, 1.0 × 103 ms−1 (Mass of proton = 1.67 ×, 10−27 kg and ℎ = 6.63 × 10−34 Js), a) 0.032 b), c), d), 0.40 nm, 2.5 nm, 14.0 nm, nm, 5. Which of the following particles moving with, same velocity would be associated with, smaller de-Broglie wavelength?, a) Helium molecule, b) Oxygen molecule, c) Hydrogen molecule d) Carbon molecule, 6. Choose the incorrect statement, a) The shape of an atomic orbital depends upon, the azimuthal quantum number, b) The orientation of an atomic orbital depends, upon the magnetic quantum number, c) The energy of an electron in an atomic, orbital of multi-electron atom depends on, principal quantum number, d) The number of degenerate atomic orbitals of, one type depends on the value of azimuthal, and magnetic quantum numbers, 7. The de-Broglie equation applies, a) To protons only, b) To electrons only, c) All the material objects in motion, , d) To neutrons only, 8. The number of orbitals present in the shell, with 𝑛 = 4 is, a) 8, b) 16, c) 18, d) 32, 9. The H-spectrum show, a) Heisenberg’s uncertainty principle, b) Diffraction, c) Polarisation, d) Presence of quantised energy level, 10. The uncertainties in the velocities of two, particles 𝐴 and 𝐵 are 0.05 and 0.02 ms−1, respecively. The mass of 𝐵 is five times to that, of mass 𝐴. What is the ratio of uncertainties, ∆𝑥𝐴, ) in their positions?, ∆𝑥𝐵, , (, 11., , 12., , 13., , 14., , 15., , 16., 17., , a) 2, b) 0.25, c) 4, d) 1, According to Bohr’s theory, the angular, momentum of an electron in 5th orbit is, ℎ, ℎ, ℎ, ℎ, a), b), c), d), 25, 1.0, 10, 2.5, 𝜋, 𝜋, 𝜋, 𝜋, An electron jumps from an outer orbit to an, inner orbit with an energy difference of 3.0eV., What will be the wavelength of the line, emitted?, a) 3660 Å, b) 3620 Å, c) 4140 Å, d) 4560 Å, The number of electrons accommodated in an, orbit with principle quantum number 2, is, a) 2, b) 6, c) 10, d) 8, The nodes present in 3𝑝-orbitals are, a) One spherical, one planar, b) Two spherical, c) Two planar, d) One planar, The radius of second Bohr’s orbit of hydrogen, atom is, a) 0.053 nm, b) 0.106 nm, c) 0.2116 nm, d) 0.4256 nm, 2+, Mg is isoelectrionic with, a) Cu2+, b) Zn2+, c) Na+, d) Ca2+, The value of Rydberg constant is, Page|1

Page 2 : 18., , 19., , 20., 21., , 22., , 23., , 24., , 25., , a) 10,9678 cm−1, b) 10,9876 cm−1, −1, c) 10,8769 cm, d) 10,8976 cm−1, The radius of hydrogen atom in the ground, state is 0.53Å. The radius of Li2+ ion (atomic, number =3) in a similar state is, a) 0.176 Å b) 0.30 Å c) 0.53 Å d) 1.23 Å, Which of the following sets of quantum, numbers is correct?, 1, a) 𝑛 = 5, 𝑙 = 4, 𝑚 = 0, 𝑠 = +, 2, 1, b) 𝑛 = 3, 𝑙 = 3, 𝑚 = +3, 𝑠 = +, 2, 1, c) 𝑛 = 6, 𝑙 = 0, 𝑚 + 1, 𝑠 = −, 2, d) 𝑛 = 4, 𝑙 = 2, 𝑚 = +2, 𝑠 = 0, The number of spherical nodes in 3𝑝 orbitals is, a) 0, b) 1, c) 2, d) 3, Four different sets of quantum numbers for 4, electrons are given below, 1, 1, 𝑒1 = 4, 0, 0, − : 𝑒2 = 3, 1, 1, −, 2, 2, 1, 1, 𝑒3 = 3, 2, 2, + : 𝑒4 = 3, 0, 0, +, 2, 2, The order of energy of 𝑒1 , 𝑒2 , 𝑒3 and 𝑒4 is, a) 𝑒1 > 𝑒2 > 𝑒3 > 𝑒4, b) 𝑒4 > 𝑒3 > 𝑒2 > 𝑒1, c) 𝑒3 > 𝑒1 > 𝑒2 > 𝑒4, d) 𝑒2 > 𝑒3 > 𝑒4 > 𝑒1, Which of the following pairs have identical, values of 𝑒/𝑚?, a) A proton and a neutron, b) A proton and deuterium, c) Deuterium and an 𝛼-particles, d) An electron and 𝛾-rays, The work function (Φ) of some metals is listed, below. The number of metals which will show, photoelectric effect when light of 300 nm, wavelength falls on the metals is :, M Li N K M C A Fe Pt W, et, a, g, u g, al, Φ(eV)2. 2. 2. 3. 4. 4. 4. 6. 4., 4 3 2 7 8 3 7 3 7, 5, a) 2, b) 4, c) 6, d) 8, Which of the following expressions gives the, de-Broglie relationship?, 𝑣, ℎ d), ℎ b), ℎ c), a), 𝜆𝑚 =, 𝜆=, 𝑝=, 𝜆=, 𝑝, 𝑚𝑝, 𝑚𝑣, 𝑚𝑣, Stark effect refers to the, a) Splitting up of the lines in an emission, spectrum in the presence of an external, electrostatic field, , b) Random scattering of light by colloidal, particles, c) Splitting up of the lines in an emission, spectrum in a magnetic field, d) Emission of electrons from metals when, light falls upon them, 26. Which diagram best represents the appearance, of the line spectrum of atomic hydrogen in the, visible region?, Increasing wave length, a), , b), c), d), 27. If the shortest wavelength of H-atom in Lyman, series is 𝑥, the longest wavelength in Balmer, series of He+ is, a) 36𝑥, b) 5𝑥, c) 𝑥, d) 9𝑥, 4, 5, 5, 9, 28. Which of the following is correctly matched?, Momentum of H atom when electrons return, a), 3𝑅ℎ, from 𝑛 = 2 to 𝑛 = 1:, 4, , 29., , 30., , 31., , 32., , b) Momentum of photon : Independent of, wavelength of light, 𝑒/𝑚 ratio of anode rays : Independent of gas, c), in the discharge tube, d) Radius of nucleus, : (Mass no. )1/2, When 𝛼 −particles are sent through a thin, metal foil, most of them go straight through the, foil because, a) Most part of the atom is empty space, b) Alpha particles move with high speed, c) Alpha particles are much heavier than, electrons, d) Alpha particles are positively charged, An electronic transition in hydrogen atom, results in the formation of Hα line of hydrogen, in Lyman series, the energies associated with, the electron in each of the orbits involved in, the transition (in kcal mol−1 ) are, a) −313.6, −34.84, b) −313.6, −78.4, c) −78.4, −34.84, d) −78.4, −19.6, In the Periodic Table metals usually used as, catalyst belong to, a) 𝑓-block, b) 𝑑-block, c) 𝑝-block, d) 𝑠-block, Ionisation potential for a noble gas is, Page|2

Page 3 : 33., 34., , 35., 36., , 37., , 38., , 39., , 40., , 41., , 42., 43., , a) Maximum in a period, b) Minimum in a period, c) Either minimum or maximum, d) Constant, Which of the following element is metalloid?, a) Bi, b) Sn, c) Ge, d) C, The first ionisation potential of Na, Mg, Al and, Si are in the order, a) Na < 𝑀𝑔 > 𝐴𝑙 < 𝑆𝑖 b) Na > 𝑀𝑔 > 𝐴𝑙 < 𝑆𝑖, c) Na < 𝑀𝑔 < 𝐴𝑙 > 𝑆𝑖 d) Na > 𝑀𝑔 > 𝐴𝑙 < 𝑆𝑖, The smallest among the following ions is, a) Na+, b) Mg 2+, c) Ba2+, d) Al3+, In the following, the element with the highest, ionisation energy is, a) [Ne]3𝑠 2 3𝑝1, b) [Ne]3𝑠 2 3𝑝3, 2, 2, c) [Ne]3𝑠 3𝑝, d) [Ne]3𝑠 2 3𝑝4, The correct order of electron affinity is, a) B < 𝐶 < 𝑂 > 𝑁, b) B > 𝐶 > 𝑁 > 𝑂, c) O > 𝐶 > 𝐵 > 𝑁, d) O < 𝐶 < 𝐵 < 𝑁, Which group of the Periodic Table contains, coinage metal?, a) IIA, b) IB, c) IA, d) None of these, The successive ionisation energy values for an, element ‘X’ are given below, 1., Ist ionisation energy =410 kJ mol−1, 2., 2nd ionisation energy =820 kJ mol−1, 3., 3rd ionisation energy =1100 kJ mol−1, 4., 4th ionisation energy =1500 kJ mol−1, 5., 5th ionisation energy =3200 kJ mol−1, Find out the number of valence electron for, the atom ‘X ’, a) 4, b) 3, c) 5, d) 2, Correct increasing order of first ionisation, potential is, a) Na < 𝑀𝑔 > 𝐴𝑙 < 𝑆𝑖 b) Na < 𝑀𝑔 < 𝐴𝑙 < 𝑆𝑖, c) Na > 𝑀𝑔 > 𝐴𝑙 > 𝑆𝑖 d) Na < 𝑀𝑔 < 𝐴𝑙 > 𝑆𝑖, Which element has the lowest, electronegativity?, a) Li, b) F, c) Cl, d) Fe, Which has highest melting point?, a) LiCl, b) BeCl2 c) BCl3, d) CCl4, Be and Al exhibit diagonal relationship. Which, of the following statement about them is/are, not true?, 6., Both react with HCl to liberate H2, 7., They are made passive by HNO3, 8., Their carbides given acetylene on, treatment with water, 9., Their oxides are amphoteric, , 44., , 45., , 46., , 47., , 48., 49., , 50., , 51., , 52., , 53., , 54., , a) (iii) and (iv), b) (i) and (iii), c) (i) only, d) (ii) and (iii), As one moves along a given row in the Periodic, Table, ionisation energy, a) Increases from left to right, b) Decreases from left to right, c) First increases, then decreases, d) Remains the same, The element having highest electron affinity is, a) Bromine, b) Iodine, c) Fluorine, d) Chlorine, Increase in atomic size down the group is due, to, a) Increase in number of electrons, b) Increase in number of protons and neutrons, c) Increase in number of protons, d) Increase in number of protons, neutrons and, electrons, Which of the following oxides is most basic?, a) Na2 O, b) SiO2, c) SO2, d) All are equally basic, Which element has highest electronegativity?, a) F, b) He, c) Ne, d) Na, The correct order of size of iodine species is, a) I > I − > I +, b) I − > I > I +, c) I + > I > I −, d) I − > I + > I, Ionic radii are, a) Inversely proportional to effective nuclear, charge, b) Inversely proportional to square of effective, nuclear charge, c) Directly proportional to effective nuclear, charge, d) Directly proportional to square of effective, nuclear charge, The set representing the correct order of ionic, radius is, a) Li+ > Be2+ > Na+ > Mg 2+, b) Na+ > Li+ > Mg 2+ > Be2+, c) Li2+ > Na+ > Mg 2+ > Be2+, d) Mg 2+ > Be2+ > Li+ > Na+, Which one of the following elements has the, highest ionisation energy?, a) [Ne]3𝑠 2 3𝑝1, b) [Ne]3𝑠 2 3𝑝3, c) [Ne]3𝑠 2 3𝑝2, d) [Ar] 3𝑑10 , 4𝑠 2 4𝑝2, The tenth elements in the Periodic Table, resembles with the, a) First period, b) Second period, c) Fourth period, d) Ninth period, Which one of the following has the lowest, Page|3