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Polymer Technology

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

350
150
100
450

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Polymer Technology
Polyesters are manufactured by the polycondensation reaction of

Inorganic acid with ethylene glycol
Carboxylic acid with ethylene
Dibasic acid with dihydric alcohol
A single monomer

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Polymer Technology
Ebonite is a/an

Natural rubber
Adhesive
Unvulcanised raw rubber
Highly vulcanised rubber

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Polymer Technology
Polymerisation of poly functional monomers produces polymers having

None of these
Good machanical strength
Low melting point
Low viscosity

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Polymer Technology
Nylon-66 is a polyamide of

Vinyl chloride and formaldeyde
None of these
Adipic acid and methyl amine
Hexamethylene diamine and adipic acid

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Polymer Technology
Cellulose content in bomboo fibre is about __________ percent.

85
20
50
10

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