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

Questions
1 The abbreviation PDI refers to:
A name of the polymer
B polydispersity index of polymer
C application of polymer
D poly diagonal index

Answer:polydispersity index of polymer
2 Chemical name of melamine is:
A 2,4-diamino-1,3,5-triazine
B 2-amino-1,3,5-triazine
C 2,4,6-triamino-1,3,5-triazine
D 1,3,5-triamino-2,4,6-triazine

Answer: 2,4,6-triamino-1,3,5-triazine
3 The starting materials of PCTFE are:
A monochloro trifluoro ethylene
B tetrafluoroethylene
C vinyl chloride
D styrene

Answer: monochloro trifluoro ethylene
4 In vulcanisation of rubber:
A sulphur reacts to form new compound
B sulphur cross-links are introduced which resists wear and tear due to friction
C sulphur forms a very thin protective layer over rubber
D all of the statements are correct

Answer: sulphur cross-links are introduced which resists wear and tear due to friction
5 A copolymer of vinyl chloride and vinyl acetate is called:
A vinylon
B saran
C dynel
D orlon

Answer: vinylon
6 Which is/are true for elastomers? 1. These are synthetic polymers possessing elasticity 2. These possess very weak intermolecular forces of attractions between polymer chains 3. Vulcanised rubber is an example of elastomer 4.
A Enhance oxidative metabolism
B Help in regulating metabolism
C are conjugated proteins
D All of the above

Answer: All of the above
7 Which are true for terpolymer?
A Contains three monomers
B ABS plastic
C A polymer of acrylonitrile, butadiene and styrene
D All of the above

Answer: All of the above
8 Thermosetting plastics are:
A cross-linked polymers
B don’t melt or soften on heating
C cross-linking is usually developed at the time of moulding where they harden reversibly
D all of the above

Answer:all of the above
9 Terylene is a:
A polyamide
B polyester
C polyether
D long chain hydrocarbon

Answer: polyester
10 Rubber is heated with sulphur and the process is known:
A galvanization
B vulcanization
C bessemerization
D sulphonation

Answer:vulcanization
11 Acetate rayon is prepared from:
A acetic acid
B glycerol
C starch
D cellulose

Answer: cellulose
12 Which of the following is used to make non stick cookware ?
A PVC
B Polysterene
C Polyethylene
D PTFE

Answer: PTFE
13 Natural rubber is a polymer of :-
A Isoprene
B Styrene
C Ethylene
D Butadiene

Answer: Isoprene
14 Which of the following is co-polymer?
A Nylon-6.6
B Terylene
C Buna-S
D All of the these

Answer: All of the these
15 Buna-S is a polymer of
A Butadiene and Styrene
B Butene and Styrene
C Butadiene and Chloroprene
D Butene and Salicylaldehyde

Answer: Butadiene and Styrene
16 Buna rubber is a polymer of:
A 1,3-btadiene
B vinyl acetate
C styrene
D none of these

Answer:1,3-btadiene
17 Buna-S is a synthetic copolymer of:
A Styrene and buta-1,3-diene
B styrene and ethylene
C 1,3-butadiene and ethylene
D none of the above

Answer: Styrene and buta-1,3-diene
18 An example of natural biopolymer is :
A Teflon
B Nylon-6,6
C Rubber
D DNA

Answer: DNA
19 Which one of the following is not a condensation polymer?
A Melamine
B Glyptal
C Dacron
D Neoprene

Answer: Neoprene
20 A copolymer of isobutylene and isoprene is called:
A butyl rubber
B buna-S
C buna-N
D thiokol

Answer: butyl rubber

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