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POLYMER TECHNOLOGY

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

Polystyrene
Polymethylmethacrylate
Polypropylene
Unsaturated polyester

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Polymer Technology
Most commonly used rubber vulcanisation agent is

Platinum
Bromine
Sulphur
Alumina

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

PVC
Polystyrene
Polypropylene
Polythene

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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.

-5
10-30
250-280
500-600

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

100
350
450
150

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