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Polymer Technology

Polymer Technology
Cellulose is the main contituent of most __________ fibres.

Spandex
Natural
Synthetic
Acrylic

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Polymer Technology
Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6.

250-280
50 to 75
-20 to 25
100 to 150

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Polymer Technology
__________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate.

Fibrous
Hard
Leathery
Rubbery

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Polymer Technology
Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are

5°C and 1 kgf/cm²
0°C and 1 kgf/cm²
- 20°C and 1 kgf/cm²
0°C and 3 kgf/cm²

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Polymer Technology
β - glucose is the monomer of

Protein
Cellulose
Starch
None of these

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Polymer Technology
Bristles of tooth brushes are made of

Nylon-6
PVC
Polystyrene
Nylon-66

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