JEE Main 2022ChemistryPolymersClassification Preparations And Properties Of PolymerseasyMCQ

JEE Main 2022 — Polymers Question with Solution

From: JEE Main 2022 (Online) 28th June Evening Shift

Question

Given below are two statements, one is Assertion (A) and other is Reason (R).

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.

In the light of the above statements, choose the correct one from the options given below :

Choose an option

Show full solutionCorrect option: C
Correct answer
C(A) is true but (R) is false.

Step-by-step explanation

Natural rubber is linear polymer of isoprene (2- methyl-1,3-butadiene) and is also called cis-1,4- polyisoprene. The cis-polyisoprene molecules consists of various chains held together by weak Vander Waal‟s interactions and has a coiled structure.

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About this question

This is a previous-year question from JEE Main 2022, covering the Polymers chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.