In stratosphere , which of the following element acts as a catalyst in degradation of ozone an release of molecular oxygen ?

Options

A. Oxygen
B. Fe
C. Cl
D. Carbon

Answer

A

Explanation

When ultraviolet light waves (UV) strike CFC* `(CFCl_3)` molecules in the upper atmosphere, a carbon- chlorine bond breaks, producing a chlorine (Cl) atom. The chlorine atom then reacts with an ozone `(O_3)` molecule breaking it apart and so destroying the ozone.