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Free download in PDF Class 12 Chemistry Chapter 15 Polymers Objective Type Questions with 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>
(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
(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
(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
(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
(9)
Terylene is a:
[A]
polyamide
[B]
polyester
[C]
polyether
[D]
long chain hydrocarbon
(10)
Rubber is heated with sulphur and the process is known:
[A]
galvanization
[B]
vulcanization
[C]
bessemerization
[D]
sulphonation
(11)
Acetate rayon is prepared from:
[A]
acetic acid
[B]
glycerol
[C]
starch
[D]
cellulose
(12)
Which of the following is used to make non stick cookware ?
[A]
PVC
[B]
Polysterene
[C]
Polyethylene
[D]
PTFE
(13)
Natural rubber is a polymer of :-
[A]
Isoprene
[B]
Styrene
[C]
Ethylene
[D]
Butadiene
(14)
Which of the following is co-polymer?
[A]
Nylon-6.6
[B]
Terylene
[C]
Buna-S
[D]
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
(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
(19)
Which one of the following is not a condensation polymer?
[A]
Melamine
[B]
Glyptal
[C]
Dacron
[D]
Neoprene
(20)
A copolymer of isobutylene and isoprene is called:
[A]
butyl rubber
[B]
buna-S
[C]
buna-N
[D]
thiokol
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