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Polymer Technology

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

450
150
350
100

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Polymer Technology
Neoprene is rendered non-inflammable, because of

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

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Polymer Technology
The starting material used for the manufacture of caprolactum is

DMT
Cyclohexane
Ethylene glycol
Ethyl benzene

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Polymer Technology
Fillers such as zinc oxide and carbon black are added to the crude natural rubber before vulcanisation in order to improve its

Elasticity
Plasticity
Strength
Weathering characteristics

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Polymer Technology
Maximum consumption of polymers is in

Toys making
Electrical insulation
Coating and films
Packaging

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Polymer Technology
Dacron (or terylene) fibres as compared to nylon fibres have

All of these
Poorer dyeability
Better heat & acid resistant properties
Poorer resistance to alkalis

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