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Polymer Technology

Polymer Technology
The conversion of caprolactum in the above case is about __________ percent.

25
90
50
70

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

50°C and 1 kgf/cm²
250°C and 10 kgf/cm²
50°C and 3 - 4 kg/cm²
250°C and 1 kgf/cm²

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Polymer Technology
__________ polythene is most prone to stress-cracking

Cross-linked
High density
Low density
Linear low density

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Polymer Technology
Nylon-66 is manufactured from

Dimethyl terephthalate (DMT) and ethylene glycol
Caprolactum
Adipic acid and hexamenthylene diamine
Maleic anhydride and hexamethylene diamine

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Polymer Technology
Ebonite is a/an

Highly vulcanised rubber
Unvulcanised raw rubber
Adhesive
Natural rubber

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Polymer Technology
Orion is

A copolymer
A condensation polymer
All of these
Obtained by polymerising vinyl cyanide

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