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Polymer Technology

Polymer Technology
Buna-N is also called

Nitrile rubber
Thiokol
Neoprene
Butyl rubber

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Polymer Technology
Main constituent of natural rubber is

Polyisoprene
Polystyrene
Polybutadiene
Poly chloroprene

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Polymer Technology
__________ polythene is most prone to stress-cracking

High density
Cross-linked
Low density
Linear low density

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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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Polymer Technology
Which of the following has the weakest intermolecular forces?

Bakelite
Polyisoprene
Nylon-66
Polystyrene

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Polymer Technology
Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically

Polymethyl methacrylate (PMMA)
Polycarbonates
Polytetraflouroethylene(PTFE)
Phenolic resins

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