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

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Free download in PDF Class 12 Chemistry Chapter 15 Polymers Very Short Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>

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(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
Answer: a light absorbed by the solution
(2) Orlon has a unit of
[A] glycol
[B] isoprene
[C] vinyl cyanide
[D] acrolein
Answer: vinyl cyanide
(3) The best way to prepare polyisobutylene is
[A] coordination polymerization
[B] free-radical polymerization
[C] cationic polymerization
[D] anionic polymerization
Answer: cationic polymerization
(4) Which of the following is a biodegradable polymer?
[A] cellulose
[B] nylon-6
[C] polythene
[D] polyvinylchloride
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
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
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
Answer: Nylon-6
(8) Cellulose is a condensation polymer of
[A] α-galactose
[B] α-glucose
[C] β-glucose
[D] β-galactose
Answer: β-glucose
(9) Toluene di-isocyanate is used to prepare
[A] polyamides
[B] polyurethanes
[C] polycarbonates
[D] polyesters
Answer: polycarbonates
(10) Which of the following is an elastomer?
[A] Dacron
[B] Melamine
[C] Vulcanized rubber
[D] Polystyrene
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
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
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
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
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
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
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
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
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
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
Answer: I, II, III

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