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Sample Paper, , Time : 90 Minutes Max. Marks : 35, , General Instructions, , , , The Question Paper contains three sections., , Section A has 25 questions. Attempt any 20 questions., Section B has 24 questions. Attempt any 20 questions., Section C has 6 questions. Attempt any 5 questions., All questions carry equal marks., , AWW, , There is no negative marking., , , , SECTION-A, , This section consists of 25 multiple choice questions with overall choice to attempt any 20 questions. In case more than, desirable number of questions are attempted, ONLY first 20 will be considered for evaluation., , , , , , 1. Which of the following exists as covalent crystals in the solid state?, , (a) Iodine (b) Silicon (c) Sulphur (d) Phosphorus, 2. In graphite electrons are :, , (a) localised on each carbon atom (b) spread out between the sheets, , (c) localised on every third carbon atom (d) _ presentin antibonding orbital., 3. A fluorine atom (F) affects pair of an electron in a covalent bond which is, , (a) Weakest (b) Strongest (c) Neutral (d) Constant, , 4. Acrystalline solid, (a) changes abruptly from solid to liquid when heated (b) has no definite melting point, , (c) undergoes deformation of its geometry easily (d) hasan irregular 3-dimensional arrangements, 5. An ideal solution is formed when its components, (a) have no volume change on mixing (b) have no enthalpy change on mixing, (c) have both the above characteristics (d) have high solubility., 6. Schottky defect defines imperfection in the lattice structure of, (a) solid (b) gas (c) liquid (d) plasma, 7. TUPAC name of CH,CH,C(Br) = CH-C1 is, (a) 2-bromo-1-chlorobutene (b) 1-chloro-2-bromobutene, (c) 3-chloro-2-bromobutene (d) None of the above, 8. Proteins are condensation polymers of, (a) a-aminoacids (b) B-amino acids (c) a-hydroxy acids (d) B-hydroxy acids, 9. | When two halogen atoms are attached to same carbon atom then it is :, (a) vic-dihalide (b) gem-dihalide (c) a, @-halide (d) a, B-halide, 10. Which of the following noble gases react with fluorine to form compound?, (a) Krypton (b) Xenon (c) Radon (d) All of the above, ll. Anether is more volatile than an alcohol having the same molecular formula. This is due to, (a) dipolar character of ethers (b) alcohols having resonance structures, (©) inter-molecular hydrogen bonding in ethers (d)__ inter-molecular hydrogen bonding in alcohols, , 12. The space lattice of graphite is, (a) cubic (b) tetragonal (c) rhombic (d) hexagonal
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sp-2, , 13. The process of converting alkyl halides into alcohols involves ............., , (a) addition reaction (b) substitution reaction (c) dehydrohalogenation (d) rearrangement reaction, 14. Which of the following factor do not affect solubility of solid solute in liquid?, , (a) Temperature (b) Pressure (c) Nature of solute (d) All of these, 15. Which of the following has strongest hydrogen bonding?, , (a) Ethyl amine (b) Ethanal (c) Ethyl alcohol (d) Diethyl ether, 16. What is hybridization of P in PCI, ?, , (a) sp? (b) sp°d? (© sp3d (sp?, 17. Which of the following is correct about H-bonding in nucleotide?, , (a) A---AandT---T (6) G---TandA---C (©) A--GandT---C (d) A---TandG--C, 18. Ethylene dichloride can be prepared by adding HCl to, , (a) ethane (b) ethylene (c) acetylene (d) ethylene glycol, 19. Haloarenes are ortho and para directing due to, , (a) Resonance in aryl halide (b) —leffect of halogen atom, , (©) +leffect of halogen atom (d) Both (a) and (b), 20. On heating lead nitrate forms oxides of nitrogen and lead. The oxides formed are ....., , (a) N,O,PbO (b) NO,,PbO (©) NO,PbO (@_ NO,PbO,, 21. Which one of the following is non-ideal solution, , (a) Benzene + toluene (b) n-hexane + n-heptane, , (©) Ethyl bromide + ethyl iodide (d) CC,+CHCl,, 22. Collectively the elements of group 15 are called —, , (a) pnicogens (b) pnicopens (c) nicopen (d) None of these, 23. Insulin production and its action in human body are responsible for the level of diabetes. This compound belongs to which, , of the following categories?, , (a) A carbohydrate (b) Ahormone (c) Aco-enzyme (d) Anantibiotic, 24. Which one of the following elements is most metallic ?, , (a) P (b) As (c) Sb qd B, 25. Which of the following elements does not show allotropy?, , (a) Nitrogen (b) Bismuth (c) Antimony (d) Arsenic, , SECTION-B, , , , This section consists of 24 multiple choice questions with overall choice to attempt any 20 questions. In case more than, desirable number of questions are attempted, ONLY first 20 will be considered for evaluation., , , , 26., , 27., , 28., , Which of the following liquid pairs shows a positive deviation from Raoult’s law ?, (a) Water - Nitric acid (b) Benzene - Methanol, (c) Water - Hydrochloric acid (d) Acetone - Chloroform, , The vapour pressure of two liquids ‘P’ and ‘Q’ are 80 and 60 torr, respectively. The total vapour pressure of solution obtained, by mixing 3 mole of P and 2 mole of Q would be, , (a) 72torr (b) 140torr (c) 68torr (d) 20torr, , Arrange the following compounds in the increasing order of their densities., , 1 1 r, , @ CO Gi) Gi) Gv), , 1 Cl, (@) (W<(ii)<dii)<(iv) (6) (@)<(iii)<(iv) <i) (©) iv) <Giii)< Gi) < @ @d) (ii)< Gy) < ii) < @, , GP 4437
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Sample Paper-1 sP-3, , 29., , 30., , 31., , 32., , 33., , 34., , 35., , 36., , 37., , 38., , 39., , 41., , 42., , 43., , Which of the following is not tetrahedral in shape?, , (a) NHZ (b) SiCl, © SE, @ so,, Primary structure of a protein is, , (a) sequence in which c-amino acids are linked to one another, , (b) sequence in which amino acids of one polypeptide chain are joined to other chain, , (c) the folding patterns of polypeptide chains, , (d) the pattern in which the polypeptide chains are arranged, , S-Br + NaOH Seven, on, , For which solvent rate of S,,2 will be maximum?, , (a) Benzene (b) 100% H,O, , (©) 100% acetone (d) 75% H,O + 25% acetone, , S—S bond is not present in, , @) s,0F (b) S,03° © $,03- @ = 8,07, Which of the following is not a crystalline solid?, , @) Ka (b) CsCl (©) Glass (d) RhombicS, For the compounds, , CH,Cl, CH,Br, CH,I and CH,F,, , the correct order of increasing C-halogen bond length is:, , (a) CH,F<CH,CI<CH,Br< CHI (®) CH,F<CH,Br<CH,Cl<CH, , (c) CH,F<CH,I<CH,Br<CH,Cl (d) CH,Cl<CH,Br< CH,F< CHI, , XeF, dissolves in anhydrous HF to give a good conducting solution which contains:, (a) Htand XeF; ion (b) HF) and XeFy ions (c) HXekS and F” ions (d) None of these, , Equal moles of water and urea are taken in a flask. What is mass percentage of urea in the solution ?, , (a) 7.692% (b) 769.2% (©) 76.92% (d) 0.7692%, Which statement is not correct about alcohol?, , (a) Molecular weight of alcohol is higher than water, , (b) Alcohol of less no. of carbon atoms is less soluble in water than alcohol of more no. of carbon atoms, (c) Alcohol evaporates quickly, , (d) All of the above, , Strong reducing behaviour of HPO, is due to, , (a) low oxidation state of phosphorus, , (b) presence of two — OH groups and one P — H bond, , (c) presence of one — OH group and two P — H bonds, , (d) high electron gain enthalpy of phosphorus, , What is the coordination number of sodium and oxygen in Na,O in which oxide ions occupy ccp arrangement and sodium, ions occupy all tetrahedral voids?, , (a) 64 (bo) 48 © 8&4 @ 24, , Which of the following group 15 element forms metallic bonds in elemental state ?, , (a) As (b) P (© Sb @ B, , Isopropyl alcohol is obtained by reacting which of the following alkenes with concentrated H,SO, followed by boiling with, 0?, , a Ethylene (b) Propylene (c) 2-Methylpropene (d) Isoprene, , Which of the following cannot be made by using Williamson’s synthesis?, , (a) Methoxybenzene (b) Benzyl p-nitrophenyl ether, , (c) Methyl tertiary butyl ether (d) _Di-tert-butyl ether, , PCI, reacts with water to form, , (a) PH, (b) H,PO,andHCl (©) POCl, @ HPO,, , Which of the following compounds is resistant to nucleophilic attack by hydroxyl ions?, (a) Methyl acetate (b) Acetonitrile (c) Acetamide (d) Diethyl ether
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GP 4437, , , , Given below are two statements labelled as Assertion (A) and Reason (R). Select the most appropriate answer from the options, given below:, , (a) BothAand R are true and R is the correct explanation of A., , (b) Both A and R are true but R is not the correct explanation of A., , (c) Ais true but R is false., , (d) Ais false and R is also false., , 45. Assertion: Par cine! is more reactive than PhCH,Cl., , , , Reason : Conjugation with carbonyl group much more effective than with simple alkene or benzene ring., 46. Assertion : Bond angle of H,S is smaller than H,O., Reason : Electronegativity of the central atom increases, bond angle decreases., 47. Assertion : Alkyl fluorides are prepared by heating AgF with alkyl chloride., Reason : Because direct fluorination of alkanes occurs very slowly with rupture of C = C bonds., 48. Assertion : Molarity of a solution in liquid state changes with temperature., Reason : The volume of a solution changes with change in temperature., 49. Assertion : Dinitrogen is inert at room temperature., Reason : Dinitrogen directly combines with lithium to form ionic nitrides., , SECTION-C, , This section consists of 6 multiple choice questions with an overall choice to attempt any 5. In case more than desirable number, of questions are attempted, ONLY first 5 will be considered for evaluation., , , , , , 50. Match the columns, , Column -I Column-II, (A) Mass percentage (p) Medicine and pharmacy, (B) Mass by volume (q) Concentration of pollutants in water, © ppm (@® Industrial chemical application, (@) Volume percentage (s) Liquid solutions, (a) A-(), B-(p),C-(s), D-(r) (b) A-(s), B-(), C-(p), D-@), (©) A-(), B-(@),C-(s),D-(p) @ A-(@®, B-(@),C-(q),D-(), , 51. Which of the following analogy is incorrect?, (a) Optically inactive amino acid : Glycine : : Optically active protein : Lysine, (b) Essential amino acid : Lysine: : Non essential amino acid : Glycine, (c) Basic amino acid : Aspartate : : Acidic amino acid : Histidine, (d) Glucose : Pyranose : : Fructose : Furanose, , +Excess HO, ‘x! 4 HE, , , , , , , , , , 52. XeF,, +2H,0, Correct analogy for X: : Y, (a) X:XeO,:: Y: XeOF, (b) X:Xe:: Y: XeO,;, (Q X:Xe0,F,::Y:Xe (@) X:XeO,::Y:Xe0,F,, , , , Case Study : Read the following paragraph and answers the questions., , , , Alkyl halides are insoluble in water but soluble in organic solvents. The insolubility in water is due to their inability to form, hydrogen bonds with water. Alkyl bromides and iodides are denser than water whereas alkyl chlorides and fluorides are lighter, than water. Alkyl halides have higher boiling points than alkanes of comparable molecular weight. For a given halogen atom, the, boiling points of alkyl halides increase with the increase in the size of the alkyl group., , 53. Which of the following is liquid at room temperature (b.p. is shown against it)?, , (a) CH,I(42°C) (b) CH,Br(3°C) (© CH,C1(12°C) (d) CH,F(-78°C), 54, Which of the following possesses highest melting point?, (a) Chlorobenzene (b) _m-dichlorobenzene (c) o-dichlorobenzene (d) _p-dichlorobenzene, , 55. The decreasing order of boiling points of alkyl halides is, (a) RF>RCI>RBr>RI (b) RBr>RCI>RI>RF (c) RI>RBr>RCI>RF (d) RCI>RF>RI>RBr
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OMR ANSWER SHEET, Sample Paper No -1, , Use Blue / Black Ball pen only., Please do not make any atray marks on the answer sheet., Rough work must not be done on the answer sheet., , Darken one circle deeply for each question in the OMR Answer sheet, as faintly darkend / half darkened circle might by, rejected., , HH HH, , , , Start time : End time Time taken, , , , , , , , 1. Name (in Block Letters), , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , 2. Date of Exam, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , SECTION-A, 10 OO O}/1O © © @O{[8K/@ © © ©, 210 © © © j}»}©O © © © }]¥%¥|© © © ©, 31© © © ©]1©O © © © }»|©O © © @, 4110 © © © j]x]©O © © © ]2/© © © ©, 5J© © © ©O]4}}/©O © © © }]2/© © © ©, 1O © © @©j|4#]/©O ©O © © ]2/© © © ©, 71©@ ©@ © @©Ojs}©O @O © © |]#!©@ © © ©, 10 © © © |s}O O © © |5/© © © ©, © © © O11© © © ©, , SECTION-B, ™O © © OOOO OPO ® OG, @® ® © © [sO © ® @ |alO © © O, x1O © © © |x|©O © © © |#/© © © ©, »I©® © © © }. © © © |45/© © © ©, 30. © © © |s}©@ © © © [4|\@ © © @, 11©O © © OO © © © |#|@ © © ©, 21© © © © |. ©O © © |8/© © © ©, 81© © © ©/© © © © |#|@ © © ©, , SECTION-C, "oO ®O OPO OO O09 0 OO, IO © © @|s!1O © © O|s5|O © © @, No. of Qns. Attempted Correct Incorrect Marks
