2. SECTION – I (Total Marks : 50) Single Correct Answer Type There are five parts in this question. Four choices are given for each part and one of them is correct. Indicate you choice of the correct answer for each part in your answer-book by writing the letter (a), (b), (c) or (d) whichever is appropriate.
3. 01 Problem Electrophile in the case of chlorination of benzene in the presence of FeCl3 is Cl FeCl3 Cl+ Cl-.
4. Problem 02 The bond length between hybridized carbon atom and other carbon atom is minimum in Propene Propyne Propane Butane.
5. Problem 03 An aniline on nitration gives a. b. c. d. Both ‘a’ and ‘c’
6. Problem 04 The reaction CH2 = CH – CH3 + HBr -> H3CHBr-CH3 is Electrophonic substitution Free radical addition Nucleophilic addition Electrophilic addition
7. Problem 05 Which of the following has zero dipole moment? 1-butene 2-methyl, 1-propene cis 2-butene trans 2-butene.
8. Problem 06 A transition element X has a configuration (Ar) 3d4 in its + 3 oxidation state. Its atomic number is 32 19 25 26.
9. Problem 07 Which of the following bonds has the highest energy? S – S O– O Se – Se Te – Te.
10. Problem 08 The basic character of hydrides of the Vth group elements decreases in the order NH3 > PH3 > AsH3 > SbH3 SbH3 > AsH3 > PH3 > NH3 SbH3 > PH3 > AsH3 > NH3 NH3 > SbH3 > PH3 > AsH3.
11. Problem 09 Boron compounds behaves as Lewis acids, because of their Ionization property Electron deficient nature Acidic nature Covalent nature.
12. Problem 10 When calomel reacts with NH4OH, we get Hg2O HgO HgNH2Cl NH2 –Hg –Hg-Cl.
13. Problem 11 The equation constant for the reaction N2 + 3H2 2NH3 is K, then equilibrium constant for the equation is a. b. c. d.
14. Problem 12 The relationship between osmotic pressure at 273 K when 10 gm glucose (p1), 10 gm urea (p2), and 10 gm sucrose (p3) are dissolved in 250 ml of water is p2 > p1 > p3 p2 > p3 > p1 p1 > p2 > p3 p2 > p1 > p2.
15. Problem 13 Which of the following ion is the largest in size? K+ Ca2+ Cl- S-2.
16. Problem 14 Reaction of sodium thiosulphate with iodine gives Tetrathionate ion Sulphide ion Sulphate ion Sulphite ion.
17. Problem 15 Among the following oxides, the lowest acidic is As4O6 As4O10 P4O6 P4O10.
18. Problem 16 Which of the following compound gives benzoic acid on hydrolysis? Chlorobenzene Benzoyl chloride Chlorophenol Chlorotoluene.
19. Problem 17 Which of the following mixture of gases does not obey Dalton’s Law of partial pressure? Cl2 and SO2 CO2 and He O2 and CO2 N2 and O2.
20. Problem 18 What will be the longest wavelength line in Ballmer series of spectrum? 546 nm 656 nm 566 nm 556 nm
21. Problem 19 The ionic product of water at 250C is 10-14. Its ionic product at 900C will be 1 x 10-14 1 x 10-16 1 x 10-20 1 x 10-12
22. Problem 20 Aldol condensation will not take place in CH3CHO CH3COCH3 HCHO CH3CH2CHO.
23. Problem 21 The oxidation of toluene to benzaldehyde by chromyl chloride is called Etard reaction Riemer-Tiemann reaction Wurtz reaction Cannizzaro’s reaction
24. Problem 22 The structure and hybridization of Si (CH3)4 is Octahedral, sp3d Tetrahedrial, sp3 Bent, sp Trigonal, sp2.
25. Problem 23 Reduction potential for the following half-cell reactions are The EMF for the cell reaction will be -032 V + 1.20 V -1.20 V + 0.32 V.
26. Problem 24 Which of the following has the greatest electron affinity? I Br F Cl.
27. Problem 25 Which of the following is the correct equation? U = W + Q U = Q – W W = U + Q none of these.
28. Problem 26 An element (atomic mass = 100 mg/mol) having BCC structure has unit cell edge 400 pm. The density of element is 7.289 gm/cm3 2.144 gm/cm3 10.376 gm/cm3 5.188 gm/cm3.
29. Problem 27 KMnO4 reacts with oxalic acid according to the equation Here 20 ml of 0.1 M KMnO4 is equivalent to 50 ml of 0.5 M C2H2O4 20 ml of 0.1 M C2H2O4 20 ml of 0.5 M C2H2O4 50 ml of 0.1 M C2H2O4
30. Problem 28 The number of isomers in C4H10O will be 7 8 5 6
31. Problem 29 Which of the following represents calcium chlorite? Ca(ClO3)2 Ca(ClO2)2 CaClO2 Ca(ClO4)2.
32. Problem 30 If If α is dissociation constant, then the total number of moles for the reaction 2 HI = H2 + I2 will be 1 1- α 2 2-α
33. Problem 31 The IUPAC name of (CH3)2 CH-CH2-CH2Br is 1-bromo and 3-methyl butane 2-methyl and 3-bromo propane 1-bromo pentane 2-methyl and 4-bromo butane.
34. Problem 32 The amount of zinc required to produce 224 ml of H2 at STP on treatment with dilute H2SO4 will be 65 gm 0.065 gm 0.65 gm 6.5 gm.
35. Problem 33 The pH value of N/10 NaOH solution is 12 13 10 11.
36. Problem 34 Which of the following is not a Lewis acid? SiF4 C2H4 BF3 FeCl3.
37. Problem 35 When a few typical solutes are separated by a particular selective membrane such as protein particles, blood corpuscles, this process is called Transpiration Endosmosis Dialysis Diffusion.
38. Problem 36 A 5 ampere current is passed through a solution of zinc sulphate for 40 minutes. The amount of zinc deposited at the cathode is 0.4065 gm 65.04 gm 40.65 gm 4.065 gm.
39. Problem 37 If we mix a pentavalent impurity in a crystal lattice of germanium, what type of semiconductor formation will occur? n-type semiconductor p-type semiconductor both (a) and (b) none of these.
40. Problem 38 A colloidal system has particles of which of the following size? 10-9 m to 10-12 m 10-6 m to 10-9 m 10-4 m to 10-10 m 10-5 m to 10-7 m
41. Problem 39 The vapour pressure of CCl4 at 250C is 143 mm Hg. If 0.5 gm of a non-volatile solute (mol. Weight = 65) is dissolved in 100 ml CCl4, the vapour pressure of the solution will be 199.34 mm Hg 143. 99 mm Hg 141.43 mm Hg 94. 39 mm Hg.
42. Problem 40 What is the morality of H2SO4 solution, that has a density 1.84 gm/cc at 350C and contains 98% by weight ? 18.4 M 18 M 4.18 M 8.14 M.
43. Problem 41 The given reaction is an example of Third order reaction First order reaction Second order reaction None of these.
44. Problem 42 0.24 gm of a volatile gas, upon vaporization, gives 45 ml vapour at NTP. What will be the vapour density of the substance? (Density of H2 = 0.089) 95. 93 59.93 95.39 5.993
45. Problem 43 The average kinetic energy of an ideal gas, per molecule is S.I. units, at 250C will be 6.17 x 10-20 J 7.16 x 10-20 J 61.7 x 10-21 J 6.17 x 10-21 J
46. Problem 44 The F.C.C. crystal contains how many atoms in each unit cell? 6 8 4 5
47. Problem 45 At what temperature, the rate of effusion of N2 would be 1.625 times than the rate of SO2 at 5000C ? 3730C 6200C 1100C 1730C
48. Problem 46 Which of the following has sp2-hybridisation? BeCl2 C2H2 C2H6 C2H4.
49. Problem 47 In a Bohr’s model of an atom, when an electron jumps from n = 1 to n = 3, how much energy will be emitted or absorbed? 2.389 x 10-12 ergs 0.239 x 10-10 ergs 2.15 x 10-11 ergs 0.1936 x 10-10 ergs
50. Problem 48 The electronic configuration of transition elements is exhibited by ns1 ns2np5 ns2(n - 1)d1-10 ns2 (n - 1)d10.
51. Problem 49 Which of the following is used as an anti-knocking material ? Glyoxalin Freon T.E.L. Ethyl alcohol.
52. Problem 50 Which of the following has the smallest size? Al3+ F- Na+ Mg2+
