Question

State briefly the reactions causing ozone layer depletion in the stratosphere.

Answer 1

The decomposition products of CFCs destroy ozone as it is shown in the following reaction: 

CF₂Cl₂(g) + hv → Ci(g) + CF₂Cl(g) 

I(g) + O₃(g) → Cl(g) + O₂(g) 

Cl(g) + O(g) → Cl + O₂(g)