The statement that is not true about ozone is : (A) in the stratosphere, CFCs release chlorine free radicals (Cl) which reacts with O3 to give chlorine dioxide radicals. (B) in the stratosphere, it fo

Question

The statement that is not true about ozone is :

(A) in the stratosphere, CFCs release chlorine free radicals (Cl) which reacts with O3 to give chlorine dioxide radicals.
(B) in the stratosphere, it forms a protective shield against UV radiation.
(C) it is a toxic gas and its reaction with NO gives NO2
(D) in the atmosphere, it is depleted by CFCs.

Prashant Kotian · Accepted Answer

Correct answer: A. In presence of sunlight CFC’s molecule divides & release chlorine free radical, which react with ozone give chlorine monoxide radical (  ClO ) and oxygen. CF2Cl2(g)   UV ) g (l C  + ) g ( Cl F C 2   Cl (g) + O3 (g)   ClO (g) + O2(g)  ClO (g) + O(g)   Cl (g) + O2(g)

💡 Solution & Explanation

Practice 22,000+ questions like this