Q. In stratosphere, which of the following elements acts as a catalyst in degradation of ozone and release of molecular oxygen ?
A) Fe
B) Cl
C) Carbon
D) Oxygen
Explanation
[Solution] Cl atoms from CFCs catalytically degrade ozone to $O_2$. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.