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1.	State briefly the reactions causing ozone layer depletion in the stratosphere.
Answer» 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)

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

Answer»

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)

Discussion