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Classification of polymers
NEET level
Single correct option
Difficulty 1 of 3
pl012
Polymers held together by the weakest intermolecular forces, which can be stretched and return to shape, are called
A
fibres
B
thermosetting polymers
C
elastomers
D
thermoplastics
Answer: C
Elastomers such as Buna-S have weak van der Waals forces between coiled chains, so they stretch and recover. Fibres have the strongest forces.
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