PolymershardMCQ SINGLE

Elastomers possess a unique ability to stretch out over ten times their normal length and retract toPolymers Chemistry Question

Question

Elastomers possess a unique ability to stretch out over ten times their normal length and retract to their original shape. Thermodynamically and structurally, what is the primary reason for this behavior?

Answer: B

💡 Solution & Explanation

Elastomers consist of randomly coiled flexible chains with weak intermolecular forces. Stretching uncoils these chains, forcing them into a highly aligned, low-entropy state. Upon removal of the stress, the chains retract to their highly coiled, maximum entropy state. Sparse cross-links prevent the chains from completely slipping past one another.

💬
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes
Ask on WhatsApp →

Practice 22,000+ questions like this

AI-adaptive practice, video lectures, and full IChO (Chemistry Olympiad) content — all in one place.

JEE Advanced · JEE Mains · NEET · IChO · AP Chemistry