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Polymer Technology

Polymer Technology
Terylene is a/an

None of these
Homopolymer
Poly amide
Addition polymer

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Polymer Technology
Condensation polymerisation of __________ produces bakelite.

Urea & formaldehyde
Phenol & formaldehyde
Propylene
Phenol & acetaldehyde

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Polymer Technology
Which of the following is the lowest cost plastic commercially available?

Polythene
Teflon
Bakelite
PVC

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Polymer Technology
Polypropylene compared to polythene is

Stronger
All of these
Lighter
Harder

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Polymer Technology
Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is

Chloroethane
Chlorophrene
None of these
Isoprene

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Polymer Technology
Plasticisers are added to synthetic plastics to

All of these
Develop new improved properties not present in the original resin
Impart flexibility
Improve workability during fabrication

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