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POLYMER TECHNOLOGY

Polymer Technology
Contact lenses for eyes are made of perspex, which is nothing but

Polypropylene
Polystyrene
Unsaturated polyester
Polymethylmethacrylate

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Polymer Technology
Most commonly used rubber vulcanisation agent is

Alumina
Bromine
Platinum
Sulphur

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Polymer Technology
Hot drink (e.g, tea) cups are usually made of

Polythene
Polystyrene
PVC
Polypropylene

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Polymer Technology
90% of the caprolactum is converted to nylon-6 on its condensation polymerisation in the reactor maintained at a temperature of __________ °C.

500-600
10-30
250-280
-5

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Polymer Technology
Most of the plastics are safe to be used upto a maximum temperature of __________ °C.

450
350
150
100

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