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Polymer Technology

Polymer Technology
Which of the following is not an elastomer?

Nitrile-butadiene
Polyisoprene
None of these
Neoprene

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Polymer Technology
The organic acid monomer in nylon 66 is

Sebasic acid
Adipic acid
Benzoic acid
Terephthalic acid

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Polymer Technology
__________ polymer is used for making unbreakable crockery.

None of these
Thermoplastic
Addition
Melamine

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Polymer Technology
Mastication of rubber means

Improving its curing rate
A treatment to retard its deterioration due to oxidation
Its softening
Depression of its freezing point

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Polymer Technology
Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene.

Silicone
Butyl
Neoprene
Nitrile

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Polymer Technology
Which of the following additives are added to plastics to make it impervious to X-rays?

Asbestos
Phthalic acid
Barium salt
Carborundum

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