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Polymer Technology

Polymer Technology
Buna-S is a __________ material.

Rubbery
Plastic
Resinous
Fibrous

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Polymer Technology
Which of the following is not a natural polymer?

Polyisoprene
Nucleic acids e.g. RNA and DNA
Polyurethane
Polysaccharides

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Polymer Technology
Which of the following polymers has the tendency of decomposing before melting?

Polystyrene
None of these
PVC
Nylon

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Polymer Technology
Softening point of high density polythene is about __________ °C.

85
165
135
205

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Polymer Technology
Neoprene is rendered non-inflammable, because of

The absence of chlorine atoms in its monomer
The presence of chlorine atoms in its monomer
Its linear chain structure
Its cross-linked structure

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Polymer Technology
Starting material for the production of butadiene in India is

Phthalic anhydride
Ethyl alcohol
Naphthalene
Benzol

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