JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 28 June 2022, Shift 1, Chemistry Q78

Question 78 of 90 in this shift, Chemistry question 18 of 30, Section A.

Which one of the following is NOT a copolymer ?

(1)Buna-S
(2)NeopreneOfficial answer
(3)PHBV
(4)Butadiene-styrene

Official answer

Option 2

NTA final key.

Chapter: Polymers
Topic: Polymers
Idea tested: Homopolymers vs Copolymers

Same topic in other shifts

All Polymers questions

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10 Apr 2023, Shift 2 · Q78Buna-S can be represented as:EasySingle correct
11 Apr 2023, Shift 1 · Q78The polymer X - consists of linear molecules and is closely packed. It is prepared in the presence of triethylaluminium and titanium…EasySingle correct
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12 Apr 2023, Shift 1 · Q80Match List I with List II LIST I (Examples) / LIST II (Type) A. 2-chloro-1,3- butadiene - I. Biodegradable polymer B. Nylon 2-nylon 6 -…EasyMatch the list

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.