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Polymer Technology
Comments
Question
Which of the following polymers has the tendency of decomposing before melting?
Options
A. Polystyrene
B. Nylon
C. PVC
D. None of these
Correct Answer
PVC
Polymer Technology problems
Search Results
1. Plasticisers are added to synthetic plastics to
Options
A. impart flexibility.
B. improve workability during fabrication.
C. develop new improved properties not present in the original resin.
D. all (a), (b) and (c).
Show Answer
Scratch Pad
Discuss
Correct Answer: all (a), (b) and (c).
2. Celluloid is
Options
A. cellulose acetate
B. regenerated cellulose
C. cellulose nitrate
D. cellulose acetate butyrate
Show Answer
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Discuss
Correct Answer: cellulose nitrate
3. The monomer of poly vinyl chloride (PVC) is
Options
A. chloroethene
B. ethylene dichloride
C. ethyl chloride
D. chloroform
Show Answer
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Discuss
Correct Answer: chloroethene
4. Neoprene is chemically known as
Options
A. polybutandiene
B. styrene butadiene rubber (SBR)
C. polyurethane
D. poly chloroprene
Show Answer
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Discuss
Correct Answer: poly chloroprene
5. Reaction of dimethyl terephthalate (DMT) and ethylene glycol produces
Options
A. nylon-6
B. dacron
C. polyester
D. PVC
Show Answer
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Discuss
Correct Answer: dacron
6. The main use of butadiene is
Options
A. as a plasticiser for unsaturated polyester.
B. in the manufacture of synthetic rubber.
C. as an anti-skimming agent in paint.
D. none of these.
Show Answer
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Correct Answer: in the manufacture of synthetic rubber.
7. Nitrile rubber is produced by the polymerisation of
Options
A. acrylonitrile & butadiene.
B. acrylonitrile & styrene.
C. isobutylene & isoprene.
D. none of these.
Show Answer
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Correct Answer: acrylonitrile & butadiene.
8. Which of the following is generally not used as eord for synthetic rubber tyre casing?
Options
A. Dacron
B. Nylon
C. Cellulose
D. None of these
Show Answer
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Discuss
Correct Answer: Cellulose
9. Lavatory cisterns are normally made of
Options
A. expanded polystyrene
B. saturated polyester
C. perspex
D. PVC
Show Answer
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Discuss
Correct Answer: expanded polystyrene
10. Zeigler - Natta catalyst (AlR
3
- AlCl
3
) is used in the polymerisation of
Options
A. vinyl acetate
B. vinyl chloride
C. propylene
D. styrene
Show Answer
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Discuss
Correct Answer: propylene
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