Kerala SET 2018 Feb Question Paper Chemistry

A
18204 120 MINUTES
1. The ground state energy of a particle in a 1D box of length 1Å is 0.6032 x 10-17 J.
The energy gap between first and the second energy level is
A) 6.032x10-17 J B) 1.8095x10-17 J
-17
C) 0.2528x10 J D) 0.6032x10-17 J

 
2. The commutator [ L x , L y ] is equal to
   
A) ih L z B) i L z C)  i L z D)  ih L z

3. The value of the spherical harmonics Y1, 0 ( ,  ) is

3 3
A) sin  B) cos
4 4

3 3
C) sin  cos D) sin  sin 
4 4

4. The Huckel theory secular determinant equation for cyclobutadiene is

x 1 0 1 x 0 1 1
1 x 1 0 1 x 0 1
A) 0 B) 0
0 1 x 1 1 0 x 1
1 0 1 x 1 1 0 x

x 1 0 0 x 0 0 1
1 x 1 0 1 x 1 0
C) 0 D) 0
0 1 x 1 0 1 x 1
0 0 1 x 1 0 0 x

5. The delocalisation energy of benzene according to Huckel M O method is
A) 0.48 B) 2.0 C) 4.0 D) 4.472

6. The number of fundamental vibrational modes of CO2 appearing common both in its
IR and Raman spectra are:
A) four B) three C) two D) zero

7. The resistance of Hg drops to zero when cooled to:
A) at 4.2K B) at 4.20C
C) below 180K D) zero Kelvin

8. The number of 1H-NMR signals that would appear in the spectrum of
CH3—CH=CH2 is:
A) 1 B) 2 C) 3 D) 4

9. Which of the following molecular orbitals of homo diatomic molecules have gerade
parity?

A)  s  p  *p B)  s*  *p  *p
C) s  p  p D)  s  *p  p

10. Certain volume of He takes 20s to effuse through a porous barrier. The time taken by
same volume of methane gas to effuse under same condition is
A) 10s B) 20s C) 40s D) 80s

11. The physical processes undergone by a photochemically excited molecule responsible
for phosphorescence is
A) T1 > S0 + heat
B) S1 > S0 + heat
C) T1 S0 + h
D) S1 S0 + h

12. Which of the following mixture of H2 and He will show maximum entropy of mixing?
A) 0.5 moles of H2 and 0.5 moles of He
B) 0.25 moles of H2 and 0.75 moles of He
C) 0.75 moles of H2 and 0.25 moles of He
D) 0.6 moles of H2 and 0.4 moles of He

13. The inter-planar distance between (100) set of planes in a face cantered cubic unit cell
is 170 pm. The distance between two (200) set of planes is
A) 170 pm B) 340 pm C) 85 pm D) 100 pm

14. Which of the following statements are true for Schottky defect?
1) Cations occupies the interstitial positions.
2) Density of the crystal decreases.
3) It arises due to the loss of equal number of anions and cations.
4) It appears in crystals in which the anion and cations are of same size.

A) 1, 2 & 3 only B) 2 & 3 only
C) 2, 3 & 4 only D) 1 & 4 only

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15. Match list I to list II and select the correct answer from the options given below.
List I List II

 E 
a)   1. V
 T  V
 T 
b)   2. C v
 P  H
 G 
c)   3.  JT
 P  T
 G 
d)   4.  S
 T  p

A) a-4, b-1, c-3, d-2 B) a-2, b-3, c-1, d-4
C) a-4, b-2, c-3, d-1 D) a-3, b-2, c-1, d-4

16. The residual entropy of solid CO at absolute zero of temperature is
A) 2.50 JK-1 mol-1 B) 5.76 JK-1 mol-1
C) 5.76 K-1 mol-1 D) 3.76 JK-1 mol-1

17. For an ideal binary mixture
A) Vmix  0, H mix  0, S mix  0, Gmix  0
B) Vmix  0, H mix  0, S mix  ve, Gmix  ve
C) Vmix  0, H mix  0, Smix  ve, Gmix  ve
D) Vmix  ve, H mix  0, S mix  0, Gmix  ve

18. For an adiabatic reversible expansion
A) (T1 / T2 )  (V2 / V1 )  1 B) (T1 / T2 )  (V2 / V1 )1
C) (T2 / T1 )  1  ( P2 / P1 ) D) (T1 / T2 )  ( P2 / P1 ) 

19. The ionic strength of a solution which is 0.2 molal in CaCl2 and 0.1 molal NaCl is
A) 0.6 B) 1.2 C) 1.4 D) 0.7

20. Potassium chloride is commonly used for preparing salt bridge. This is because
A) Both the cation and anion have same activity.
B) The cation and anion are isoelectronic.
C) It is a 1:1 electrolyte.
D) The transference numbers of cation and anion are nearly same.

21. All spontaneous adsorption processes are
A) highly exothermic and there is a decrease in entropy
B) highly endothermic and there is a decrease in entropy
C) highly exothermic and there is an increase in entropy
D) highly endothermic and there is an increase in entropy

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22. Which one pair belongs to abelian group?
A) C2v and C3v B) C2v and C4
C) C3v and C2h D) D6h and C3v

23. Mulliken notation for the irreducible representation  is

C4v E 2C4 C2 2v 2d
 1 1 1 -1 -1

A) A1 B) A2 C) B1 D) B2

24. Symmetry planes present in benzene molecule are
A) One horizontal plane and six vertical planes
B) One horizontal and six dihedral planes
C) Three horizontal planes and three vertical planes
D) One horizontal plane, three vertical planes and three dihedral planes.

25. Ruthenocene belongs to the point group
A) D5h B) C5h C) C5v D) D5d

26. The reducible representation  given below can be reduced into

C2v E C2 yz xz
A1 1 1 1 1
A2 1 1 -1 -1
B1 1 -1 -1 1
B2 1 -1 1 -1
 5 -1 5 -1

A) 3A1+2B1 B) 2A1+B1+2B2
C) 2A1+3B2 D) A1+2B1+2B2

27. Which of the following are symmetric top?
A) CH3Cl & BF3 B) H2O & CH2Cl2
C) HCl & CO2 D) CH4 & SF6

28. The cryoscopic constant for water is 1.86K kg mol-1. At what temperature a 0.1 m
KCl will freeze?
A) - 0.1860C B) +0.1860C C) - 0.3720C D) +0.3720C

29. Which of the following equilibrium reactions have same values of Kp and Kc?
A) N2(g)+3H2(g) 2NH3(g)
B) 2SO2(g)+O2(g) 2SO3(g)
C) N2(g)+O2(g) 2NO(g)
D) PCl5(g) PCl3(g)+Cl2(g)

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30. The emf of Daniel cell can be increased by increasing
A) The surface area of Cu electrode
B) The surface area of Zn electrode
C) The concentration of Cu 2+ solution
D) The concentration of Zn 2+ solution

31. Which is the incorrect statement?
A) For solutions show +ve deviation from Raoult’s law, PB > xBPB0
B) For solutions show -ve deviation from Raoult’s law, PB < xBPB0
C) For solutions show +ve deviation from Raoult’s law, PB < xBPB0
D) For solutions obey Raoult’s law, PB = xBPB0

32. The emf of the cell Ag(s)/Ag+(aq, 0.1M)//Ag+(aq.,0.01M)/ Ag(s) at 25 0C is
A) +0.591V B) +0.0591V C) -0.0591V D) -0.591V

33. The rate expression for the reaction 2NO(g)+2H2(g)  N2(g)+2H2O(g) is given by
r = k[NO]2[H2]. When [NO] is doubled and [H2] is halved, the rate of the reaction is:
A) doubled B) remain unchanged
C) increased by four times D) increased by three times.

34. For a first order reaction a plot of lnk versus 1/T has slope -4157. Energy of activation
will be
A) –79.6 kJ mol-1 B) –34.5 kJ mol-1
-1
C) +34.5 kJ mol D) +79.6 kJ mol-1

35. Maxwell Boltzmann statistics is applicable for
A) ideal gas B) protons C) photons D) electrons

36. Microcanonical ensembles are characterised by same
A) N,V, E B) N,V,T C) N,T, μ, D) N,V, μ

37. Maximum number of phases that can be coexist in a one component system is
A) 1 B) 2 C) 3 D) 4

38. Total number of Bravais lattices, point groups and space groups in crystals are:
A) 14, 32 and 230 B) 14, 32 and 232
C) 14, 30 and 232 D) 7, 32 and 232

39. The molar mass of macromolecule determined by osmometry is
A) MV B) Mn C) MW D) M V and M n

40. The protons in acetone molecule appeared in an NMR spectrum recorded on a 60 MHz
instrument at 120 Hz. At what frequency would it appear if it were recorded on
400 MHz instrument?
A) 120 Hz B) 400 Hz C) 800 Hz D) 600 Hz

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41. The electron gain enthalpy of halogens are in the order
A) F > Cl > Br > I B) F > Br > Cl > I
C) Cl > F > Br > I D) Cl > Br > F > I

42. Which is the smallest cation among the following?
A) Fe2+ B) Fe3+ C) Na+ D) Li+

43. The faint pink colour of aqueous solution of Mn2+ ion is due to
A) spin allowed d-d transition
B) Laporte allowed d-d transition
C) Ligand to metal charge transfer
D) Laporte and spin forbidden d-d transition

44. Choose the correct statement given below
A) Mn3O4 is inverse spinel B) Co3O4 is normal spinel
C) Fe3O4 is normal spinel D) None of these

45. Among the hydrogen halides, which is the most powerful reducing agent?
A) HCl B) HBr C) HF D) HI

46. The shapes of I 3 , XeF4, ClF3 and SF4 are respectively
A) Linear, square planar, T-shaped and see-saw
B) V-shaped, square pyramid, T-shaped and see-saw
C) Linear, pentagonal, T-shaped and see-saw
D) Linear, square pyramid, T-shaped and tetrahedral

47. The unfavorable factor for the use of hydrogen as a fuel at room temperature and
pressure is its
A) Low enthalpy of combustion
B) Low specific enthalpy
C) Low enthalpy density
D) High production cost

48. STYX number for B2H6 is
A) 2002 B) 4112 C) 4002 D) 4102

49. The structure of polyhedron of the carborane cluster C2B4H6 based on Wades rule is
A) Arachno B) Nido C) Closo D) Hypo

50. Which of the following statements is not true for Zeise’s salt?
A) Pt is four coordinated.
B) Ethylene molecule retains its original planarity in the complex.
C) The hybridisation of Pt is dsp2.
D) The hapticity of ethylene is two.

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51. Metal ions capable of forming double bonds with oxygen are
A) Cr(III), Os(VIII), Mn(III) B) Cr(III), Os(VI), Mn(II)
C) Cr(III), Os(VIII), Mn(II) D) Cr(VI), Os(VIII), Mn(VII)

52. The d-orbitals on the Re atoms suitable for making delta bond in [Re2Cl8]2- is
A) dxy B) dyz C) dxz D) d(x2-y2)

53. Number of Cu-O bonds present in Cu(CH3COO)2.2H2O is
A) 6 B) 8 C) 10 D) 4

54. The hapticities shown by C5H5 rings in the molecule Ti(C5H5)4 is/are:
A) 1 only B) 1&5 C) 2&5 D) 5 only

55. The catalyst used for the conversion of ethylene to acetaldehyde is
A) Wilkinson catalyst B) PdCl2/CuCl2
C) Al(Et)3/ TiCl4 D) Co2(CO)8

56. The terms derived from d2 configuration are:
3
A) D, 3P, 1D, 1P, 1S B) 3
F, 3P, 1G, 1D, 1S
3
C) P, 3F, 1G,1 D, 3S D) 3
F, 3P, 3G,1D, 1S

57. The metals present in nitrogenise:
A) Cu and Zn B) Cu and Ni C) Ni and Co D) Fe and Mo

58. Which one is Vaska’s complex?
A) [Co(PPh3)2COCl] B) trans-[Ir(PPh3)2(CO)Cl]
C) cis-[Ir(PPh3)2(CO)Cl] D) [Ir(C2H4)2COCl]

59. Which ligand would create the largest d-orbital splitting to a given 3d metal ion in an
octahedral field?
A) N-nitrito B) Ethylenediamine
C) Acetylacetonato D) Carbonyl

60. The correct order of d-orbital splitting in a square planar field is
A) (dxz = dyz) < dz2 < dxy < dx2-y2
B) dz2 < (dxz = dyz) < dx2-y2 < dxy
C) dz2 < dx2-y2 < (dxz =dyz) < dxy
D) dz2 < dx2-y2 < dxy <(dxz = dyz )

61. The reaction, [RhCl(PPh3)3] + H2 [RhCl(PPh3)3(H)2] is
A) oxidative addition B) reductive elimination
C) insertion D) beta elimination

62. The process of precipitating of two slightly soluble compounds containing same
cation or anion form the solution is known as:
A) fractional precipitation B) post precipitation
C) co-precipitation D) homogeneous precipitation

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63. Elemental boron can be purified by
A) Zone refining B) Van Arkel process
C) Electrolytic process D) Thermite process

64. The strength of H2SO4, HClO4 and HCl in glacial acetic acid are in the order
A) H2SO4 > HClO4 >HCl B) HCl > HClO4 > H2SO4
C) H2SO4 >HCl > HClO4 D) HClO4 >H2SO4 >HCl

65. Zintl ions among the following are:
1) PF6- 2) Sn94- 3) AsBi 5+ 4) Sb73-

A) 1, 2, 3 B) 1, 2, 4 C) 2, 3, 4 D) 2&4

66. Which of the following compound is ESR active?
A) KMnO4 B) K2Cr2O7
C) Cu2( CN)2 D) FeSO4.7H2O

67. The role of carbonic anhydrase enzyme is to
A) regulate pH and CO2 formation
B) oxidise ascorbic acid
C) help in digesting proteins
D) transport oxygen in higher animals.

68. The complex ion [Co(en)2Cl2]+ exhibit
A) optical isomerism only
B) optical isomerism and geometrical isomerism
C) geometrical isomerism only
D) neither optical nor geometrical isomerism.

69. Match the following from List I (fuels) with List II (composition)
List I List II
a) water gas 1) CO+N2
b) Producer gas 2) CO+H2
c) Coal gas 3) CH4
d) Marsh gas 4) CO+H2+CH4 +CO2

A) a-1, b-2, c-3, d-4 B) a-2, b-1, c- 3, d-4
C) a-1, b-2, c-4, d-3 D) a-2, b-1, c-4, d-3

70. The metal ion and the macrocyclic ring present in met-haemoglobin is
A) Fe (II) and corrin B) Co(II) and corrin
C) Fe(II) and porphyrin D) Fe(III) and porphyrin

71. Number of hyper fine ESR signals for [Mn(H2O)2]2+ (IMn=5/2).
A) 5 B) 36 C) 15 d) 30

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72. The [Ti(H2O)6]3+ is purple coloured complex and its absorption maxima appeared at
20300cm-1. This corresponds to 243 kJ/mol. The CFSE of the complex is
A) 243 kJ/mol B) 145.8 kJ/mol
C) 97 kJ/mol D) 194 kJ/mol

73. Unequal M-O bond lengths is observed in
A) [Zn(OH2)6]2+ B) [Mn(OH2)6] 2+
3+
C) [Fe(OH2)6] D) [Fe(OH2)6] 2+

74. The volume of 0.025 molar KMnO4 solution required to oxidise 20mL of 0.025 molar
ferrous iron solution is
A) 20 mL B) 40 mL C) 4 mL D) 5 mL

75. Which of the following characteristics of the target and product species are favourable
for carrying out estimation by neutron activation method?
A) Target with high neutron cross-section area and product with short half life.
B) Target with low neutron cross-section area and product with long half life.
C) Target with low neutron cross-section area and product with short half life.
D) Target with high neutron cross-section area and product with long half life.

76. The number of - and - particles emission involved in the transformation of
238 206
92 U  82 Pb is

A) 8 and 8 B) 8 and 6
C) 6 and 8 D) 8 and 10

77. BOD of a water sample is equal to the amount of oxygen consumed in mg per litre of
it when kept at
A) 200C for five days B) 280C for five days
C) 200C for three days D) 250C for five days

78. Catalytic converter is a device fitted to the engine in vehicles to
A) filter out dust particle from air to reach engines
B) convert CO to H2O vapour
C) convert CO to CO2 in the exhaust.
D) convert oxides nitrogen to ammonia vapour

79. Which one of the following is an antimalarial?
A) Phenacetin B) Erythromycin
C) Chloroquin D) Digitoxin

80. Which of the following methods are used for synthesising nanoparticles?
1) Sol-gel method 2) Chemical vapour deposition
3) sputtering 4) laser beam lithography

A) 1, 2 and 4 only B) 1, 2 and 3 only
C) 3 and 4 only D) 1, 2, 3 and 4

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81. Number of oxygen atoms shared in the structures of chain and cyclic silicates are
A) 1 and 2 respectively B) 2 and 1 respectively
C) 2 and 2 respectively D) 2 and 3 respectively

82. An unknown alkyl halide reacts with alcoholic potash followed by ozonolysis yields
propanal and methanal as products. The alkyl halide is
A) 1-bromobutane B) 2-bromobutane
C) 1, 2-dibromobutane D) 1,4-dibromobutane

83. 18- annulene is aromatic. The number of protons in the shielded region is
A) 18 B) 12 C) 6 D) 10

84. Which is not true for reversed phase HPLC?
A) The stationary phase is non-polar
B) Starting eluent is polar and the eluent polarity is gradually decreased.
C) The most polar component will come out first.
D) Only polar eluent is used always

85. The best method for the separation of o- and p-nitrophenols mixture is
A) Steam distillation
B) Simple distillation
C) Distillation under reduced pressure
D) Fractional distillation

86. The correct order of polarity of solvents is
A) C6H14 < C6H6 < CH2Cl2< CH3Cl < EtOAc <EtOH <AcOH
B) C6H14 < C6H6 < CH3Cl < CH2Cl2 < EtOAc <EtOH <AcOH
C) C6H14 < C6H6 < CH2Cl2< CH3Cl < EtOH <EtOAc <AcOH
D) C6H14 < C6H6 < CH3Cl < CH2Cl2 < EtOH <EtOAc <AcOH

87. What would be the product of the reaction?

HO

O O O
c) d)
a) b)

O

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88. In the following rearrangement reaction, the final product is

H+
Cl NH NH

a) H 2N NH2

Cl

b) H 2N NH2

c) Cl NH NH 2

d) NH NH2

Cl

89.
COOH

The product of the reaction Na/ liqud NH3
alcohol
.

COOH COOH COOH COOH

a) b) c)
d)

90. The reaction involved in the transformation of cyclohexanoneoxime to caprolactum is
A) Beckmann rearrangement
B) Demjanov rearrangement
C) Wagner-Meerwein rearrangement
D) Favorski rearrangement

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91.
In the reaction
COCH 3

RCO 3H
P, what is P?

OCOCH3 CO 3H COOH COOH

c) d)
a) b)

92. The unsaturated hydrocarbon formed at the end of Hoffmann exhaustive methylation of

is

N CH3
H

b)
a)

d)
c)

93. The product formed in the reduction of naphthalene in the presence of Ni is
A) cis-decalin B) trans- decalin
C) 1, 4-dihydro naphthalene D) 1,2,3,4- tetrahydronaphthalene

94. Suggest a suitable reagent for the transformation

OH

A) MnO2 B) OsO4
C) H2O2/OH- D) SeO2/AcOH

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95. The reactant R in the following reaction is

a) NH2
b) CH3-CH2-CH 2-CH2-NH2

NH2

c)
d) either (a) or (c)

96. The  max calculated for the following molecule by applying Woodward-Fieser rule is

CH2

CH2

A) 235 nm B) 240 nm C) 217 nm D) 224 nm

97. Which is more stable?
A) (CH3)3C+ B) tropylium cation
C) CH2=CH-CH2+ D) C6H5CH2+

98. The major product of the reaction is

OCH 3

Br
KNH2

OCH3
NH 2 OCH 3 NH2

Br NH2 NH 2
c)
a) b) d)

NH 2

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99. Match the IR frequencies from group II with the carbonyl compounds from group I .
Group I Group II
a) 2-cyclohexenone 1) 1780cm-1
b) Cyclohexanone 2) 1750cm-1
c) Cyclobutanone 3) 1680cm-1
d) Cyclopentanone 4) 1710cm1

A) a-3, b-4, c-1, d-2 B) a-3, b-2, c-1, d-4
C) a-4, b-1, c-3, d-2 D) a-2, b-1, c-3, d-4

100. Which is more acidic?

a) b) c) d)

101. Which one of the following shows highest dipole moment?
A) 1,3-dchlorobenzene B) 1,3,5-trichlorobenzene
C) 1,4-dichlorobenzene D) 1,2-dichlorobenzene

102. What would be the product of the following reaction?

[O]
KMnO4(ref lux)
N

COOH COOH COOH

a) b) c) d)

N COOH COOH N N COOH

CHO + CH (COOH) Pyridine
2 2 P
103.
What is P?

COOH
a)

COOH
b)

c)
COOH

COOH
d)

COOH

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104. Which are the amino acids containing sulphur?
A) Proline and cysteine B) Tryptophan and methionine
C) Serine and cysteine D) Cysteine and methionine

105. The compound that can be synthesised by Kolbe Schmidt reaction is
A) 2-hydroxybenzene carboxylic acid
B) 2-acetyl benzenecarboxylic acid
C) Phenyl ethanoic acid
D) 2-aminobenzene carboxylic acid

106. The product of crossed Cannizaro reaction between C6H5CHO and HCHO
A) Formic acid and benzyl alcohol
B) Benzoic acid and methanol
C) Methyl benzoate
D) benzyl formate

107. Which of the following molecule consume two molecules of ethyl magnesium
bromide?
A) HC ≡ C — CH3 B) HC ≡ C — CH2— OH
C) HO— H2C— H2C — OH D) Both B and C

108. Solvent suitable for carrying out microwave assisted organic synthesis is
A) Benzene B) p-xylene
C) cyclohexane D) ethylene glycol

109. Find the reagent suitable for the conversion

Br

A) Br2 in CCl4 B) Br2 / red phosphorous
C) HBr/H2O2 D) NBS/AIBN

110. Predict the product of the following reaction.

HO
H+

OH
OH

a) b) c) d)

O HO O O

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111. Give the IUPAC name of the following compound.

Br

A) 1-bromospiro[5,4] decane B) 1-bromospiro[4,5]decane
C) 2-bromospiro[4,5]decane D) 2-bromospiro[5,4]decane

112. The more stable confirmation of cis-1, 2-dimethyl cyclohexane
A) Both group equatorial
B) Both axial
C) One axial and one equatorial
D) Twist boat conformation

113. Which is the weakest base among the following?

a) Cl NH 2 b) H3 C NH2

c) CH 3O NH2 d) O2N NH 2

114. The reagent used for the separation of primary, secondary and tertiary amines from a
mixture is
A) Bezenesulphonylchloride
B) o-toluene sulphonylchloride
C) Thionyl chloride
D) Tosyl chloride

115. D-Glucose and D-mannose are related as
A) Anomers B) Epimers
C) Enantiomers D) Homomers

116. Cis-trans isomerism is shown by
A) Cyclohexene B) 1,2-dibromocyclohexane
C) 1-butene D) 2,3-dimethyl butane

117. The intermediate formed in Reimer-Tiemann reaction is
A) Carbonium ion B) Carbanion
C) Carbene D) Dichlorocarbene

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118. Absolute configuration of carbon atoms 2 and 3 are

COOH
H NH 2
C

C
H OH
CH3

A) 2S, 3S B) 2S, 3R C) 2R, 3S D) 2R, 3R

119. The chief product in the Ziegler-Natta catalysed polymerisation of propylene is
A) isotactic polypropylene
B) syndiotactic polypropylene
C) atactic polypropylene
D) mixure of syndiotactic and actacic polypropylenes.

120. Dacron is a copolymer formed by the condensation of
A) phenol & formaldehyde
B) adipic acid & hexamethylenetetramine
C) ethyle glycol and terephthalic acid
D) urea & formaldehyde

_______________________

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