Question

Intermediate compound formed in the depletion of $O_3$ layer by chlorofluorocarbons is:

• A. $O_2$, $F_2$
• B. $OCl$
• C. $O{F}_2$
• D. $C{l}_{2}O$

Answer 1

The correct option is B $OCl$

CFC's absorb U.V radiation in stratosphere and liberate chlorine atoms which in turn destroy the ozone layer.
$CFC{l}_3\underset{UV}{\overset{hv}{\to }}CFC{l}_2^{\ast }+C{l}^{\ast }$
$C{l}^{\ast }+O_3\to Cl{O}^{\ast }+O_2$
$Cl{O}^{\ast }+\left(O\right)\to C{l}^{\ast }+O_2,etc.$