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Polymer Technology

Polymer Technology
Rain coats are made of

Neoprene
SBR
Polyurathane
PVC

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Polymer Technology
Most commonly used rubber vulcanisation agent is

Platinum
Sulphur
Alumina
Bromine

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

Carborundum
Asbestos
Phthalic acid
Barium salt

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Polymer Technology
Density of low density polythene is about __________ gm/c.c.

0.38
0.81
0.56
0.91

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Polymer Technology
Tyres are made by

Rotational moulding
Compression moulding
Injection moulding
Extrusion

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Polymer Technology
The physical state in which polymers exist is

Partially crystalline state
All of these
Amorphous glassy state
Melts & rubber like state

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