Assertion (A): Natural rubber is a linear polymer of isoprene called cis-polyisoprene with elastic p

Question

Assertion (A): Natural rubber is a linear polymer of isoprene called cis-polyisoprene with elastic properties.\ Reason (R): The cis-polyisoprene molecules consist of various chains held together by strong polar interactions with coiled structure.

Professor PC Thomas Classes · Answer

Assertion A is true. Reason R is false because the chains in cis-polyisoprene are held together by very weak van der Waals forces, not strong polar interactions.