How does the depletion of ozone layer occur by chlorofluorocarbons?

(N/A) The main reason for ozone layer depletion is the release of chlorofluorocarbon compounds $(CFCs)$,also known as freons. These compounds are non-reactive,non-flammable,and non-toxic organic molecules.
These are used in refrigerators,air conditioners,in the production of plastic foam,and by the electronic industry for cleaning computer parts.
$CFCs$ are released into the atmosphere,mix with normal atmospheric gases,and eventually reach the stratosphere. In the stratosphere,they are broken down by powerful $UV$ radiations,releasing a chlorine free radical.
$CF_{2}Cl_{2(g)} \xrightarrow{UV} \dot{Cl}_{(g)} + \dot{C}F_{2}Cl_{(g)} \quad \dots (I)$
The chlorine radical then reacts with stratospheric ozone to form chlorine monoxide radicals and molecular oxygen.
$Cl_{(g)} + O_{3(g)} \rightarrow ClO_{(g)} + O_{2(g)} \quad \dots (II)$
The reaction of chlorine monoxide radical with atomic oxygen produces more chlorine radicals.
$Cl\dot{O}_{(g)} + O_{(g)} \rightarrow \dot{Cl}_{(g)} + O_{2(g)} \quad \dots (III)$
The chlorine radicals are continuously regenerated and cause the breakdown of ozone. Thus,$CFCs$ act as transporting agents for continuously generating chlorine radicals in the stratosphere,thereby damaging the ozone layer.