Class 12 Chemistry MCQ – Polymers

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1. Which of the following is a natural polymer?

a) Polythene
b) PVC
c) Rubber
d) Nylon

Answer:

c) Rubber

Explanation:

Rubber is a natural polymer while the rest are synthetic polymers.

2. The process of forming polymers from monomers is called:

a) Hydrolysis
b) Polymerization
c) Fermentation
d) Distillation

Answer:

b) Polymerization

Explanation:

Polymerization is the process by which monomers combine to form polymers.

3. Which of the following polymers is formed by the polymerization of ethene?

a) PVC
b) Teflon
c) Polythene
d) Bakelite

Answer:

c) Polythene

Explanation:

Polythene is formed by the polymerization of ethene.

4. The monomer of natural rubber is:

a) Propene
b) Isoprene
c) Vinyl chloride
d) Tetrafluoroethene

Answer:

b) Isoprene

Explanation:

Natural rubber is a polymer of isoprene.

5. Which of the following is a condensation polymer?

a) PVC
b) Nylon-6,6
c) Polythene
d) Polystyrene

Answer:

b) Nylon-6,6

Explanation:

Nylon-6,6 is formed by condensation polymerization of adipic acid and hexamethylenediamine.

6. Buna-N is a copolymer of:

a) Butadiene and styrene
b) Ethene and propene
c) Butadiene and acrylonitrile
d) Ethene and vinyl chloride

Answer:

c) Butadiene and acrylonitrile

Explanation:

Buna-N is formed by the copolymerization of butadiene and acrylonitrile.

7. Which of the following polymers is biodegradable?

a) PVC
b) Polythene
c) Nylon-6
d) PHBV

Answer:

d) PHBV

Explanation:

PHBV (Polyhydroxybutyrate-co-valerate) is a biodegradable polymer.

8. Terylene is a type of:

a) Polyester
b) Polyamide
c) Polyolefin
d) Polyacrylate

Answer:

a) Polyester

Explanation:

Terylene is a type of polyester, formed by the condensation of ethylene glycol and terephthalic acid.

9. Vulcanization is a process used to:

a) Harden rubber
b) Soften plastic
c) Decompose PVC
d) Polymerize ethene

Answer:

a) Harden rubber

Explanation:

Vulcanization is the process of heating rubber with sulfur to improve its properties.

10. Which of the following is a thermosetting polymer?

a) PVC
b) Polythene
c) Bakelite
d) Neoprene

Answer:

c) Bakelite

Explanation:

Bakelite is a thermosetting polymer, which means it cannot be remolded on heating.

11. The monomer of teflon is:

a) Vinyl chloride
b) Tetrafluoroethene
c) Ethene
d) Propene

Answer:

b) Tetrafluoroethene

Explanation:

Teflon is a polymer of tetrafluoroethene.

12. Which of the following is a fiber-reinforced polymer?

a) Polythene
b) Buna-S
c) Glass fiber reinforced plastic (GFRP)
d) PVC

Answer:

c) Glass fiber reinforced plastic (GFRP)

Explanation:

GFRP is a composite material made of a polymer matrix reinforced with glass fibers.

13. PAN is used as a precursor for:

a) Rubber
b) Nylon-6
c) Teflon
d) Acrylic fiber

Answer:

d) Acrylic fiber

Explanation:

Polyacrylonitrile (PAN) is used as a precursor for making acrylic fibers.

14. Which of the following is not a step in the addition polymerization process?

a) Initiation
b) Propagation
c) Termination
d) Hydrolysis

Answer:

d) Hydrolysis

Explanation:

Addition polymerization involves initiation, propagation, and termination.

15. The polymer used for making non-stick cookware is:

a) PVC
b) Polystyrene
c) Teflon
d) Nylon

Answer:

c) Teflon

Explanation:

Teflon is used to make non-stick coatings for cookware.

16. Biopol is a polymer of:

a) Propene
b) 3-hydroxybutanoic acid
c) Ethene
d) Tetrafluoroethene

Answer:

b) 3-hydroxybutanoic acid

Explanation:

Biopol is a polymer of 3-hydroxybutanoic acid.

17. Which of the following polymers can undergo elastic deformation?

a) Bakelite
b) Melamine
c) Elastomers
d) Terylene

Answer:

c) Elastomers

Explanation:

Elastomers are rubber-like polymers that can be stretched and will return to their original shape.

18. The polymer formed by the condensation of hexamethylenediamine and adipic acid is:

a) Neoprene
b) Nylon-6,6
c) Polythene
d) Terylene

Answer:

b) Nylon-6,6

Explanation:

Nylon-6,6 is formed by the condensation of hexamethylenediamine and adipic acid.

19. The polymer used for making parachutes and stockings is:

a) PVC
b) Polystyrene
c) Neoprene
d) Nylon

Answer:

d) Nylon

Explanation:

Nylon is used for making parachutes, stockings, and various other products due to its strength and elasticity.

20. The polymer that is formed by the polymerization of styrene is:

a) PVC
b) Polythene
c) Polystyrene
d) Neoprene

Answer:

c) Polystyrene

Explanation:

Polystyrene is formed by the polymerization of styrene.

Related MCQ (Multiple Choice Questions) :

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