Class 12 Chemistry Chapter 15 Polymers Very Short Questions and Answers | Class 12 Chemistry Chapter 15 Polymers Quiz

1 The turbidity of a polymer solution measures

A light transmitted by the solution

B light scattered by the solution

C a light absorbed by the solution

D none of these

View Answer

Answer:a light absorbed by the solution

2 Orlon has a unit of

A glycol

B isoprene

C vinyl cyanide

D acrolein

View Answer

Answer: vinyl cyanide

3 The best way to prepare polyisobutylene is

A coordination polymerization

B free-radical polymerization

C cationic polymerization

D anionic polymerization

View Answer

Answer:cationic polymerization

4 Which of the following is a biodegradable polymer?

A cellulose

B nylon-6

C polythene

D polyvinylchloride

View Answer

Answer:cellulose

5 The substance used to harden the rubber for tire manufacture is

A CaC₂

B wax

C carbon black

D 1, 3-butadiene

View Answer

Answer: carbon black

6 Which of the following is not correct regarding terylene?

A synthetic fiber

B thermosetting plastic

C step-growth polymer

D condensation polymer

View Answer

Answer: thermosetting plastic

7 Perlon is another name of

A Nylon-6, 10

B Nylon-4, 4

C Nylon 6, 6, 6

D Nylon-6

View Answer

Answer: Nylon-6

8 Cellulose is a condensation polymer of

A α-galactose

B α-glucose

C β-glucose

D β-galactose

View Answer

Answer:β-glucose

9 Toluene di-isocyanate is used to prepare

A polyamides

B polyurethanes

C polycarbonates

D polyesters

View Answer

Answer:polycarbonates

10 Which of the following is an elastomer?

A Dacron

B Melamine

C Vulcanized rubber

D Polystyrene

View Answer

Answer:Vulcanized rubber

11 Which one of the following pairs of monomers are used in the manufacture of 'Dacron'?

A acrylonitrile and vinyl acetate

B terephthalic acid and ethylene glycol

C phthalic acid and ethylene glycol

D adipic acid and hexamethylene diamine

View Answer

Answer:terephthalic acid and ethylene glycol

12 Consider the following sequence of reactions.

The polymer (Y) is

A PVC

B Saran

C Neoprene

D Chloroprene

View Answer

Answer:Neoprene

13 Which of the following is the chemical name of 'melamine'?

A l, 3, 5-triamine-2, 4, 6-triazine

B 2, 4, 6-triamine-l, 3, 5-triazine

C 2-amino-l, 3, 5-triazine

D 2, 4-diamino-l, 3, 5-triazine

View Answer

Answer:2, 4, 6-triamine-l, 3, 5-triazine

14 Peroxide initiated polymerizations occur via

A hydrocarbon combustion

B natural process synthesis

C isomeric saponification

D free radical chain propagation

View Answer

Answer:free radical chain propagation

15 Which of the following can be remelted time and again without producing any change?

A Bakelite

B Urea-formaldehyde resin

C PVC

D Melamineformaldehyderesin

View Answer

Answer:PVC

16 Which of the following statement is correct?

A Vinyon is a copolymer of vinyl chloride and vinyl acetate

B Saran is a copolymer of vinyl chloride and vinylidene chloride

C Butyl rubber in a copolymer of isobutylene and isoprene

D All are correct

View Answer

Answer:All are correct

17 Which of the following polymer can be used for lubrication and as an insulator?

A SBR

B PVC

C PTFE

D PAN

View Answer

Answer:PTFE

18 The number average molecular mass and mass aver molecular mass of a polymer are respectively 30,000 and 40,000. The polydispersity index of the polymer is

A < 1

B > 1

C 1

D 0

View Answer

Answer: > 1

19 Which is true about polymers?
(1) polymers have a low molecular weight
(2) polymers have high viscosity
(3) polymers scatter light
(4) polymers do not carry any charge

A 1, 2 and3

B 1, 2 and 4

C 2, 3 and 4

D 1, 3 and 4

View Answer

Answer:2, 3 and 4

20 Which /are correct about spandex?
(I) It is a polyurethane
(II) It is a flexible polymer
(III) It is a polymer of toluene 2, 6 di isocyanates, and glycol
(IV) lt is a polymer of ammonium carbamate

A I, II, III

B I, I1, IV

C I1, I1, IV tt

D I, II, III, IV

View Answer