Odisha CPET 2022 Question Paper Chemistry

ODISHA
CPET

QUESTION PAPER
2022
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COMMON P.G. ENTRANCE TEST–2022 (CPET-2022)

Subject Code : 49 Test Booklet No.:

Entrance Subject : Chemistry Hall Ticket No.:

TEST BOOKLET

Time Allowed : 90 Minutes Full Marks : 70

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anything else on the Test Booklet.

up Test Booklet Serial No. & OMR Answer Sheet Serial No. in the Attendance Sheet carefully.

5. Each question has four answer options marked (A), (B), (C) & (D).
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take the question booklet along with the candidate’s copy of OMR sheet after completion
of the test.
14. Sheet for rough work is appended in the Test Booklet at the end.

W-Chemistry-49 P.T.O.

1. The most abundant element in earth’s crust is
(A) Aluminium
(B) Iron
(C) Silicon
(D) Oxygen

2. Diagonal relationship is shown by
(A) all Elements
(B) most of the elements of 2nd period
(C) all 3d series elements
(D) none of the above

3. The highest occupied MO in N 2 and O2 respectively are (take x-axis as internuclear axis)
*
x 2py
y z
*
2px x
* *
2py 2pz

4. The electronegativity differences is the highest for the pair
(A) Li, Cl
(B) K, F
(C) Na, Cl
(D) Li, F

5. Among the oxides of nitrogen, N2O3, N2O4 and N2O5, the compound(s) having N–N bond
is/are
(A) N2O4 and N2O5
(B) N2O3 and N2O5
(C) N2O3 and N2O4
(D) N2O5 only

W-Chemistry-49 2

6. The correct order of decreasing electronegativity of the following atoms is
(A) As > Al > Ca > S
(B) S > As > Al > Ca
(C) Al > Ca > S > As
(D) S > Ca > As > Al

7. Which one of the following configuration will show Jahn-Teller distortion in an octahedral
field?
(A) high spin d8
(B) high spin d4
(C) high spin d5
(D) low spin d6

8. The metal ion of an enzyme involved in hydration of CO2 is
(A) Cu(II)
(B) Fe(II)
(C) Mg(II)
(D) Zn(II)

9. The complexes [Pt(CN)4]2- and [NiCl4]2-, respectively, are
(A) paramagnetic, paramagnetic
(B) diamagnetic, diamagnetic
(C) paramagnetic, diamagnetic
(D) diamagnetic, paramagnetic

10. In qualitative inorganic analysis of metal ions, the ion which participates as sulfide in the
presence of H2S in warm dilute HCl is
(A) Cr3+
(B)Al3+
(C) Co2+
(D) Bi3+

W-Chemistry-49 3 P.T.O.

11. The correct combination of metal, number of ligands and the charge for a metal carbonyl
complex [M(CO)x]z- satisfying octet rule is
(A) M=Ti, x=6, z=1
(B) M=V, x=6, z=1
(C) M=Co, x=4, z=2
(D) M=Mo, x=5, z=1

12. Among the following pairs, those in which both species have similar structures are
(A) N3-, XeF2
(B) [ICl4]-, [PtCl4]2-
(C) [ClF2]+ , [ICl4]-
(D) XeO3, SO3

13. Among XeO3F2, ICl2-, ClO- and SO32-, the number of species having three lone pair of
electrons on central metal atom according to VSEPR theory is
(A) 3
(B) 0
(C) 4
(D) 2

14. The set of ions expected to show Jahn-Teller distortion in their complexes is
(A) Ti(III), Cu(II), High spin Fe(III)
(B) Cu(I), Ni(II), High spin Fe(III)
(C) Cu(II), Ti(III), Low spin Fe(III)
(C) Cu(I), Mn(II), Low spin Fe(III)

15. The hybridization of boron in diborane is
(A) sp
(B) sp2
(C) sp3
(D) sp3d

16. For a zero-order reaction, unit of the rate constant is expressed as
(A)molL-1s-1
(B) Lmol-1s-1
(C) molL-1s
(D) s-1

17. If sp is the solubility product of a sparingly soluble salt A3X2, then its solubility is
(A) ( sp/108)1/5
(B) ( sp)1/5
(C) ( sp/72)1/5
(D) ( sp)1/2

W-Chemistry-49 4

18. All natural processes are irreversible. This is a direct consequence of
(A) first law of thermodynamics
(B) second law of thermodynamics
(C) third law of thermodynamics
(D) Gibbs paradox

19. According to VSEPR theory, the molecule/ion having ideal tetrahedral shape is
(A) SF4
(B) SO42-
(C) SOCl2
(D) SO2Cl2

20. The average speed of H2, N2 and O2 gas molecules is in the order
(A) H2> N2> O2
(B) O2> N2> H2
(C) H2> O2> N2
(D) N2> O2> H2

21. An aqueous solution of hemoglobin has a molar absorptivity value of 18,600 L mol -1 cm-1 for

of the hemoglobin solution is:
(A) 0.537
(B) 5.37
(C) 53.7
(D) 537.0
22. In metal-olefin interaction, the extent of increase in metal olefin back donation would
(A) lead to a decrease in C = C bond length
(B) change the formal oxidation state of the metal
(C) change the hybridisation of the olefin carbon from sp 2 to sp3
(D) increase with the presence of electron donating substituent on the olefin

23. From the kinetic theory of gases, the ratio of most probable speed ( mp) to root mean square
speed ( rms) is

24. The effective nuclear charge of helium atom is 1.7. The first ionization energy of helium
atom in eV is
(A) 13.6
(B) 23.1
(C) 39.3
(D) 27.2

W-Chemistry-49 5 P.T.O.

25. The homogenous catalyst used in hydroformylation is
(A) HCo(CO)4
(B) Cr2O3
(C) [RhCl(PPh3)3]
(D)[RuCl2(bipyridyl)2]

26. The “heme” containing protein is
(A) Cytochrome C
(B) Hemocyanin
(C) Hemerythrin
(D) Ferritin

27. On hydrolysis, calcium carbide produces
(A) CH4
(B) C2H6
(C) C2H4
(D) C2H2

28. According to band theory of solids, conduction occurs in good conductors because
(A) valence band is full
(B) valence band and conduction band overlaps
(C) band gap is appreciable
(D) band gap is small

29. The compound that contains the most acidic hydrogen is
(A)
(B)
(C)
(D)
30. The number of crystal systems and the number of Bravais lattices are, respectively
(A) 14 and 7
(B) 7 and 32
(C) 32 and 14
(D) 7 and 14

31. The sequence of three steps involved in the following conversion is

(A) (i) Friedel-Crafts alkylation; (ii) Reduction; (iii) Friedel-Crafts acylation
(B) (i) Friedel-Crafts acylation; (ii) Friedel-Crafts alkylation; (iii) Reduction
(C) (i) Friedel-Crafts acylation; (ii) Reduction; (iii) Friedel-Crafts alkylation
(D) (i) Friedel-Crafts alkylation; (ii) Friedel-Crafts acylation; (iii) Reduction

W-Chemistry-49 6

32. Metal having maximum oxidizing power is
(A) Li
(B) Ba
(C) Cu
(D) K

33. The compound that shows positive haloform test is

(A)

B)

C)

D)

34. The increasing order of acidity of the given molecules in aqueous media is

(A) IV < I < II < III
(B) II < I < IV < III
(C) II < IV < I < III
(D) IV < II < I < III

W-Chemistry-49 7 P.T.O.

35. The d-orbitals involved in the hybridization to form square planar and trigonal bipyramidal
geometries are, respectively,
(A) dz2 and dz2
(B) dx2-y2 and dz2
(C) dyz and dz2
(D) dx2-y2 and dyz

36. The order of the M-C bond strength in the following species is
(Atomic number for Cr = 24, Mn = 25, Ti = 22, Co = 27)
[Cr(CO)6] [Mn(CO)6]+ [Ti(CO)6]2- D) [Co(CO)4]-
I II III IV
(A) II > I > IV > III
(B) I > III > II > IV
(C) III > IV > I > II
(D) III > I >II > IV

37. Osmotic pressure of a solution increases if
(A) temperature is decreased
(B) volume is increased
(C) no. of molecules of the solute is increased
(D) none of these

38. The chemical reaction taking place at anode is
(A) Oxidation
(B) Reduction
(C) Ionization
(D) Hydrolysis

39. The measure of bond dissociation energy is the change in
(A) Enthalpy
(B) Entropy
(C) Internal Energy
(D) Free Energy

40. In 1.2 years, half of 64 mg of a radioactive isotope decays. What is the amount left after
passage of 6 years?
(A) 0
(B) 2 mg
(C) 4 mg
(D) 8 mg

41. For an exothermic reaction, the equilibrium constant
(A) increases with increase in temperature
(B) decreases with increase in temperature
(C) increases with increase in pressure
(D) decreases with increase in pressure

W-Chemistry-49 8

42. Which of the following has highest Basicity?
(A) F-
(B) OH-
(C) NH2-
(D) CH3-

43. In a face centered cubic lattice, the number atoms per unit cell is
(A) 1
(B) 2
(C) 3
(D) 4

44. How many optically active isomers are there in tartaric acid?
(A) 1
(B) 2
(C) 3
(D) 4

45. Which of the following compound is the strongest base?

(A)

B)

C)

D)

W-Chemistry-49 9 P.T.O.

46. The most strained cycloalkane is
(A) Cyclopropane
(B) Cyclobutane
(C) Cyclopentane
(D) Cyclohexane

47. Reaction of chlorobenzene with NaNH2/NH3 to form aniline is
(A) an electrophilic substitution reaction
(B) a nucleophilic substitution reaction
(C) an addition-elimination reaction
(D) an elimination-addition reaction

48. Phenol is soluble in water because
(A) it has a higher boiling point than water
(B) of weak hydrogen bonding between phenol and water molecules
(C) of intermolecular hydrogen bonding between phenol molecules
(D) none of the above

49. Which reagent can distinguish between phenol and ethanol?
(A) SOCl2
(B) CH3COCl
(C) (CH3CO)2O
(D) CH3COOH

50. Three of the following four reactions are due to one similar feature of carbonyl compounds,
while the fourth one is different. Which one is the fourth?
(A) Aldol Condensation
(B) Knoevenagel Reaction
(C) Wittig Reaction
(D) Haloform Reaction

51. Formic acid has C-O bond length 1.36 Å and C=O bond length 1.23 Å, but in sodium
formate
(A) both C-O bonds become equal
(B) both C-O bond lengths decrease
(C) both C-O bond lengths increase
(D) remain same as in formic acid

52. IUPAC name of ethyl acetoacetate is
(A) Methyl-2-oxobutanoate
(B) Acetoacetic ester
(C) Ethyl-3-oxobutanoate
(D) Ethyl methyl malonate

W-Chemistry-49 10

53. Pyrrole is less basic than pyridine because the lone pair of electrons of N-atom in pyrrole

(C) resides in -hybrid orbital
(D) resides in -hybrid orbital

54. 1º, 2º and 3º alcohols can be distinguished by
(A) Hinsberg’s method
(B) Lucas Test
(C) Bromine water
(D) All of theabove

55. Which of the following is a pentose sugar?
(A) Glucose
(B) Galactose
(C) Xylose
(D) Mannose

56. The end product of protein digestion is
(A) Glucose
(B) Glycerol
(C) Oxalic acid
(D) Amino acid

57. The reverse of a photochemical reaction is called
(A) Phosphorescence
(B) Chemiluminescence
(C) Fluorescence
(D) Photosensitization

58. Which one of the following is a chain-growth polymer?
(A) Teflon
(B) Terylene
(C) Nylon-6,6
(D) Bakelite

59. Which terpenoid is present in peppermint oil?
(A) Citral
(B) Menthol
(C) Camphor
(D) Carvone
60. The factor(s) which affect chemical shift in NMR spectroscopy is/are
(A) Inductive effect
(B) H-bonding
(C) Resonance
(D) All of these

W-Chemistry-49 11 P.T.O.

61. A solution of sucrose (molar mass 342 g/mol) is prepared by dissolving 68.4 g of it per litre
of the solution. Calculate the osmotic pressure (R = 0.082 L atm K -1 mol-1) at 273 K.
(A) 3.92 atm
(B) 4.48 atm
(C) 5.92 atm
(D) 29.4 atm

62. Which one of the following metals will displace hydrogen by reacting with dilute acids?
(A) Ag
(B) Hg
(C) Cu
(D) Zn

63. The number of metal-metal bond in [Co 4(CO)12] is
(A) 2
(B) 4
(C) 6
(D) 8

64. The number of lone pairs are identical in the pairs
(A) XeO4, PCl3
(B) XeO4, ClF3
(C) XeF4, ClF3
(D) XeO2F2, SF6

65. An organic compound exhibited the following 1H NMR spectral data:
7.80 (2 H, d, = 8 Hz), 6.80 (2H, d, = 8 Hz), 4.10 (2H, q, = 7.2 Hz), 2.4 (3H, s), 1.25 (3H,
t, = 7.2 Hz).
Identify the compound from the choices given below.

A)

B)

C)

D)

11

W-Chemistry-49 12

66. What happens to the viscosity of liquids and gases with increase in temperature?
(A) increases for liquid, decreases for gases
(B) decreases for liquid, increases for gases
(C) increases for both
(D) decreases for both

67. In qualitative inorganic analysis, in order to detect second group basic radicals, H 2S gas is
passed in the presence of dilute HCl to
(A) decrease the dissociation of H2S
(B) increase the dissociation of H2S
(C) increase the dissociation of salt solution
(D) decrease the dissociation of salt solution

68. Solution of sodium meal in liquid ammonia is a strong reductant due to the presence of
(A) sodium atoms
(B) solvated electrons
(C) sodium amide
(D) sodium hydride

69. Brown ring test for nitrate depends on
(A) reduction of nitrate to nitric oxide
(B) oxidation of nitric oxide to nitrogen dioxide
(C) reduction of ferrous sulphate to iron
(D) oxidizing action of sulphuric acid

70. Acetone and acetaldehyde can be distinguished by
(A) Molisch’s test
(B) Tollen’s test
(C) Schiff’s test
(D) Iodoform test

W-Chemistry-49 13 P.T.O.

ROUGH WORK

W-Chemistry-49 14

ROUGH WORK

W-Chemistry-49 15 P.T.O.

W-Chemistry-49 16