Given below are two statements: Statement I :Chlorofluoro c…

Chemistry Enviromental Chemistry ( Not In Syllabus ) JEE Main 2021 Single Correct MCQ

Published on: August 14, 2026

Given below are two statements:

Statement I :Chlorofluoro carbons breakdown by radiation in the visible energy region and release chlorine gas in the atmosphere which then reacts with stratospheric ozone.

Statement II : Atmospheric ozone reacts with nitric oxide to give nitrogen and oxygen gases, which add to the atmosphere. For the above statements choose the correct answer from the options given below :

Statement I is incorrect but statement II is true

Both statement I and II are false

Statement I is correct but statement II is false

Both statement I and II are correct

Text Solution

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The correct answer is:

Statement

CFCs are broken down by powerful UV radiation and releases chlorine free radical which reacts withozone and start chain reaction.

Statement

Atmosphere ozone reacts with nitric oxide to produce nitrogen dioxide and oxygen.

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