JEE Main 202125 JulyEvening Shift
- Exam
- JEE Main
- Year
- 2021
- Date
- 25 July
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Environmental Chemistry
JEE Main 2021 · 25 July · Evening Shift · Chemistry · Environmental Chemistry
Given below are two statements : Statement I : Chlorofluoro carbons...
Given below are two statements :
Statement : Chlorofluoro carbons breakdown by radiation in the visible energy region and release chlorine gas in the atmosphere which then reacts with stratospheric ozone.
Statement : 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 :
Options
- AStatement is incorrect but statement is true
- BBoth statement and are false
- CStatement is correct but statement is false
- DBoth statement and are correct
Correct answer
B. Both statement and are false
Step-by-step solution
Statement
are broken down by powerful UV radiation and releases chlorine free radical which reacts with ozone and start chain reaction.
Statement
Atmosphere ozone reacts with nitric oxide to produce nitrogen dioxide and oxygen.