Class 12 Chemistry Chapter 15 Polymers MCQs | Class 12 Chemistry Chapter 15 Polymers Objective Type Questions and Answers

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Questions
1 Which one of the following polymers prepared by condensation polymerization ?
A Nylon-66
B Teflon
C Rubber
D Styrene

Answer:Nylon-66
2 [NH(CH)2NHCO(CH2)4CO]nis a:
A co-polymer
B addition polymer
C thermo-setting polymer
D homopolymer

Answer: co-polymer
3 Condensation of caprolactam gives:
A nylon-6,6
B nylon-6
C nitrile rubber
D nylon-6,10

Answer: nylon-6
4 PMMA is the polymer of
A methylmethacrylate
B methylacrylate
C methacrylate
D ethylacrylate

Answer:methylmethacrylate
5 The bakelite is made from phenol and formaldehyde. The initial reaction between the two compounds is an example of:
A aromatic electrophilic substitution
B aromatic nucleophilic substitution
C free radical reaction
D aldol reaction

Answer: aromatic electrophilic substitution
6 Of the following which is a step growth polymer?
A Bakelite
B Polyethylene
C Teflon
D PVC

Answer:Bakelite
7 The catalyst used in the manufacture of polythene by Ziegler method is:
A titanium tetrachloride and triphenyl aluminium
B titanium tetrachloride and triethyl aluminium
C titanium dioxide
D titanium isopropoxide

Answer: titanium tetrachloride and triethyl aluminium
8 PDI for natural polymers is generally close to:
A 1
B 10
C 100
D zero

Answer:1
9 Nylons, polyesters and cotton, all possess strength due to:
A intermolecule H-bonding
B van der Waals’ attraction
C dipole-dipole interaction
D none of the above

Answer:intermolecule H-bonding
10 Which of the following is wrong?
A PMMA is called plexiglass
B PTFE is called teflon
C SBR is called natural rubber
D LDPE is called low density polyethylene

Answer: SBR is called natural rubber
11 Which of the following natural products is not a polymer ?
A DNA
B Cellulose
C ATP
D Urease

Answer: ATP
12 Which one is a homopolymer?
A Bakelite
B Nylon-6,6
C Terylene
D Neoprene

Answer: Neoprene
13 The monomer units of PTFE are:
A Cl2CH-CH3
B F2C=CF2
C F3C-CF3
D FClC=CF2

Answer:FClC=CF2
14 Which of the following cannot be grouped as polyolefins?
A Polystyrene
B Polypropene
C Polystyrene
D Polyoxyethene

Answer: Polyoxyethene
15 Which of the following is not a fibre?
A Terylene
B Nylons
C Polyacrylonitrile
D Polychloroprene

Answer: Polychloroprene
16 Natural silk and artificial silk differ in one respect that one of them contains:
A N
B S
C P
D none of these

Answer:N
17 Which one of the following pairs is not correctly matched?
A Terylene—condensation polymer of terephthalic acid and ethylene glycol
B Teflon—thermally stable cross-linked polymer of phenol and formaldehyde
C Perspex—a homopolymer of methyl methacrylate
D Synthetic rubber —a copolymer of butadiene and styrene

Answer:Teflon—thermally stable cross-linked polymer of phenol and formaldehyde
18 A polymer of prop-2-enenitrile is called
A saran
B orlon
C dacron
D tetron

Answer:orlon
19 The monomer units of silicons a water repellant, acid resistant and heat resistant polymer is:
A Si
B SiO2
C R2SiO
D none of these

Answer: R2SiO
20 Caprolactam can be obtained from:
A benzaldehyde
B cyclohexane
C benzophenone
D adipic acid

Answer: cyclohexane

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