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Polymer Technology

Polymer Technology
Bristles of tooth brushes are made of

PVC
Polystyrene
Nylon-6
Nylon-66

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Polymer Technology
A copolymer is formed by the combination of two or more monomer molecules

Of the same monomer by elimination of small molecules of water
In a chain without the elimination of water
None of these
With the elimination of small amount of water

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Polymer Technology
Polystyrene is a __________ plastic at room temperature.

Ductile
None of these
Malleable
Brittle

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Polymer Technology
Branched chair polymers as compared to linear polymers have

Higher melting point
None of these
Lower density
Higher tensile strength

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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 cross-linked structure
Its linear chain structure

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Polymer Technology
The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is

Polyvinyl butyral
PVC
Polyvinyl alcohol
Polyvinyl acetale

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