JEE Main 2021 · ChemistryMultiple choiceSingle correctMediumRecall

JEE Main 25 July 2021, Shift 1, Chemistry Q40

Question 40 of 90 in this shift, Chemistry question 10 of 30, Section A.

Which one of the following chemical agent is not being used for dry-cleaning of clothes ?

(1) $\mathrm{CCl_4}$
(2) $\mathrm{Cl_2C=CCl_2}$ Official answer
(3)Liquid $\mathrm{CO_2}$
(4) $\mathrm{H_2O_2}$

Official answer

Option 2

NTA final key.

Chapter: Chemistry in Everyday Life
Topic: Environmental Chemistry
Idea tested: Green Chemistry Alternatives in Daily Applications

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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 42 of the 174 JEE Main shifts held from 2017 to 2026.