JEE Main 2021ChemistryPolymersClassification Preparations And Properties Of PolymerseasyMCQ

JEE Main 2021 — Polymers Question with Solution

From: JEE Main 2021 (Online) 24th February Evening Shift

Question

In polymer Buna-S : 'S' stands for :

Choose an option

Show full solutionCorrect option: B
Correct answer
BStyrene

Step-by-step explanation

Buna-S is the co-polymer of but 1, 3-diene and styrene as follows.

JEE Main 2021 (Online) 24th February Evening Shift Chemistry - Polymers Question 44 English Explanation

Styrene butadiene rubber is also called buna-S, in which ‘Bu’ stands for butadiene, ‘na’ stands for sodium and ‘S’ stands for styrene.

Since, butadiene and styrene is one of the constituent monomer of given polymer.

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About this question

This is a previous-year question from JEE Main 2021, 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.