NCERT MCQ CLASS-12 CHAPTER-15 | CHEMISTRY NCERT MCQ | POLYMERS | EDUGROWN

In This Post we are  providing Chapter-15 Polymers  NCERT MCQ for Class 12 Chemistry which will be beneficial for students. These solutions are updated according to 2021-22 syllabus. These MCQS  can be really helpful in the preparation of Board exams and will provide you with a brief knowledge of the chapter.

NCERT MCQ ON POLYMERS

Question 1.
Bakelite is an example of
(a) elastomer
(b) fibre
(c) thermoplastic
(d) thermosetting

Answer: (d) thermosetting

Question 2.
Arrange the following polymers is an increasing order of intermolecular forces: fibre, plastic, elastomer
(a) Elastomer < Fibre < Plastic
(b) Elastomer < Plastic < Fibre
(c) Plastic < Elastomer < Fibre
(d) Fibre < Elastomer < Plastic

Answer: (b) Elastomer < Plastic < Fiber

Question 3.
The correct structure of monomers of Buna-S is

Answer: (c)

Question 4.
The S in Buna-S refers to
(a) Sulphur
(b) Styrene
(c) Sodium
(d) Salicylate

Answer: (b) Styrene

Question 5.
Identify the type of polymer
(i) -A-A-A-A-A-A-
(ii) -A-B-B-A-A-A-B-A-
(a) (i) Homopolymer, (ii) Copolymer
(b) (i) Natural polymer, (ii) Synthetic polymer
(c) (i) Linear polymer, (ii) Branched polymer
(d) (i) Fiber, (ii) Elastomer

Answer: (a) (i) Homopolymer, (ii) Copolymer

Question 6.
Which of the following are thermoplastic polymers?
(a) Polythene, urea-formaldehyde, polyvinyl
(b) Bakelite, polythene, polystyrene
(c) Polythene, polystyrene, polyvinyl
(d) Urea-formaldehyde, polystyrene, Bakelite

Answer: (c) Polythene, polystyrene, polyvinyl

Question 7.
Glycogen, a naturally occurring polymer stored in animals is a
(a) monosaccharide
(b) disaccharide
(c) trisaccharide
(d) polysaccharide

Answer: (d) polysaccharide

Question 8.
Nylon 6, 6 is obtained by condensation polymerization of
(a) adipic acid and ethylene glycol
(b) adipic acid and hexamethylene diamine
(c) terephthalic acid and ethylene glycol
(d) adipic acid and phenol

Answer: (b) adipic acid and hexamethylene diamine

Question 9.
Teralitre is a condensation polymer of ethylene glycol and
(a) benzoic acid
(b) phthalic acid
(c) dimethyl terephthalate
(d) salicylic acid

Answer: (c) dimethyl terephthalate

Question 10.
Natural rubber is a polymer of
(a) 1, 1-dimethylbufadiene
(b) 2-methyl-1, 3-rbutadiene
(c) 2-chlorobuta-1, 3-diene
(d) 2-chlorobut-2-ene

Answer: (b) 2-methyl-1, 3rbutadiene

Question 11.
Heating rubber with Sulphur is known as
(a) galvanization
(b) bessemerization
(c) vulcanization
(d) sulphonation

Answer: (c) vulcanization

Question 12.
Dacron is an example of
(a) polyamides
(b) polypropenes
(c) polyacrylonitrile
(d) polyesters

Answer: (d) polyesters

Question 13.
Which of the following is a condensation polymer?
(a) Teflon
(b) PVC
(c) Polyester
(d) Neoprene

Answer: (c) Polyester

Question 14.
Which of the following polymers does not involve cross-linkages?
(a) Vulcanized rubber
(b) Bakelite
(c) Melamine
(d) Teflon

Answer: (d) Teflon

Question 15.
Composition of Ziegler-Natta catalyst is
(a) (Et₃)₃Al.TiCl₂
(b) (Me)₃Al.TiCl₂
(c) (Et)₃Al.TiCl₄
(d) (Et)₃Al.PtCl₄

Answer: (c) (Et)₃Al.TiCl₄

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