Question

Explain the relationship between CFC's and ozone in the stratosphere. [2]

Answer 1

Relationship between CFC's and Ozone : When CFC's are released into the stratosphere, they end up being broken up by the UV light, resulting in chlorine atoms being released. [1]

This acts like a catalyst which splits ozone molecules creating $O_2$ and $O$. $C{l}^{-}$ atoms are not consumed in the reaction. This causes the depletion of the layer and lead to the formation of a hole in the layer. [1]