2. SECTION – I Single Correct Answer Type Select the most appropriate alternative a,b,c or d in questions 1-25.
3. 01 Problem The electrons, identified by quantum umbers can be placed in order of increasing energy, from the lowest to highest, as (iv) < (ii) < (iii) < (i) (ii) < (iv) < (i) < (iii) (i) < (iii) < (ii) < (iv) (iii) < (i) < (iv) < (ii)
4. Problem 02 The number of neutrons accompanying the formation of from the absorption of a slow neutron by ,followed by nuclear fission is, 0 2 1 3
5. Problem 03 The correct order of increase in bond length is a. b. c. d.
6. Problem 04 A gas will approach ideal behaviors at low temperature and low pressure low temperature and high pressure high temperature and low pressure high temperature and high pressure
7. Problem 05 The normality of 0.3 M phosphorous acid is, 0.1 0.9 0.3 0.6
8. Problem 06 The coordination number of a metal crystallizing in a hexagonal close packed structure is 12 4 8 6
9. Problem 07 A gas X at 1 atm is bubbled through a solution containing a mixture of 1 If the reduction potential of Z>Y>X, then Y will oxidize X and not Z Y will oxidize Z and not X Y will oxidize both X and Z Y will reduce both X and Z
10. 08 Problem The pH of 0.1 M solution of the following salts increases in the order. a. b. c. d.
11. Problem 09 For the chemical reaction ,the amount of X3Y at equilibrium is affected by temperature and pressure temperature only pressure only temperature, pressure and catalyst
12. Problem 10 In the dichromate dianion, bonds are equivalent bonds are equivalent all bonds are equivalent all bonds are nonequivalent
13. Problem 11 One mole of calcium phosphide on reaction with excess water gives one mole of phosphine two moles of phosphoric acid two moles of phosphine one mole of phosphorus pentoxide
14. 12 Problem The oxidation number of sulphur in respectively, are 0,+1 and -2 +2,+1 and -2 0, + 1 and +2 -2, +1 and -2
15. Problem 13 On heating ammonium dichromate, the gas evolves is oxygen ammonia nitrous oxide nitrogen
16. Problem 14 In the commercial electrochemical process for aluminum extraction the electrolyte used is in NaOH solution an aqueous solution of a molten mixture of a molten mixture of
17. Problem 15 The geometry of and its dipole moment are angular and nonzero angular and zero linear and nonzero linear and zero
18. Problem 16 The geometry of are both square planar tetrahedral and square planar, respectively both tetrahedral square planar and tetrahedral, respectively
19. 17 Problem In compounds of type where E=B,P. AsorBi, the angles for different E are in the order B > P = As = Bi B > P > As > Bi B > P = As = Bi B > P < As < Bi
20. Problem 18 In the compound bond is of the type, a. b. c. d.
21. Problem 19 When prop ionic acid is treated with aqueous sodium bicarbonate, is liberated. The ‘C’ of comes from methyl group carboxylic acid group methylene group bicarbonate
22. Problem 20 The enol form of acetone, after treatment with ,gives: a. b. c. d.
23. Problem 21 A positive carbylamines test is given by N,N-dimethylaniline 2,4-dimethylaniline N-methyl-o-methylaniline p-methylbenzylamine
24. Problem 22 The optically active tartaric acid is named as D-(+)-tartaric acid because it has a positive optical rotation and is derived from D-glucose pH in organic solvent optical rotation and is derived from D-(+)-glyceraldehyde optical rotation only when sybstituted by deuterium
25. Problem 23 A solution of (+)-2-chloro-2-phenylenthane in toluene racemises slowly in the presence of small amount of ,due to the formation of car anion carbine free-radical carbonation
26. Problem 24 The product(s) obtained via oxymercuration of 1-butyne would be
27. Problem 25 The most unlikely representation of resonance structures of p-nitrophenoxide ion is a. b. c. d.
28. SECTION – II Multiple Correct Answer Question numbers 1-10 more then one correct answer.
29. Problem 01 The ether when treated with HI produces a. b. c. d.
30. Problem 02 Toluene when treated with ,gives p-bromotoluene as the major product because the group is Para directing is meta directing activates the ring by hyper conjugation deactivates the ring
31. Problem 03 The following statement(s) is (are) correct: A plot of log Kp versus 1/T is linear A plot of log[X]versus time is linear for a first order reaction A plot of log p versus 1/T is linear at constant volume A plot of p vesus 1/V is linear at constant temperature
32. Problem 04 The following is (are) endothermic reaction(s): Combustion of methane Decomposition of water Dehydrogenation of ethane to ethylene Conversion of graphite to diamond
33. Problem 05 Ground state electronic configuration of nitrogen atom can be represented by a. b. c. d.
34. Problem 06 In the depression of freezing point experiment ,it is found that the vapour pressure of the solution is less than that of pure solvent vapour pressure of the solution is more than that of pure solvent only solute molecules solidify at the freezing point only solvent molecules solidify at the freezing point
36. Problem 08 Ammonia, on reaction with hypochlorite anion, can form a. b. c. d.
37. Problem 09 A buffer solution can be prepared from a mixture of sodium acetate and acetic acid in water sodium acetate and acetic hydrochloric acid in water ammonia and ammonium chloride in water ammonia and sodium hydroxide in water
38. Problem 10 An aromatic molecule will have electrons have electrons be planar be cyclic
