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CBSE Class 12th Chemistry - Polymers Three Marks Questions Archana Singh - Deoghar Sep-28 , 2019

Polymers

Polymers Three Marks Questions

12th Standard CBSE

Chemistry

Time : 01:00:00 Hrs

Total Marks : 45

Explain the following terms giving a suitable example for each :
(i) Elastomers
(ii) Condensation polymers
(iii) Addition polymers

3

Write chemical equations for the synthesis of
(a) terylene
(b) neoprene
(c) teflon

3

Giving one example each of
(i) addition polymers,
(ii) condensation polymers,
(iii) copolymers.

3

Which of the following polymers soften on heating and harden on cooling? What are the polymers with this property collectively called? What are the structural similarities between such polymers Bakelite, urea-formaldehyde resin, polythene, polyvinyl, polystyrene.

3

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