The chlorofluorocarbon (CFC) CFCl3\text{CFCl}_3CFCl3 (trichlorofluoromethane) contributes to the depletion of the ozone layer in the stratosphere.
Which initiation step occurs when CFCl3\text{CFCl}_3CFCl3 absorbs ultraviolet radiation?
CFCl3→∙F+∙CCl3\text{CFCl}_3 \rightarrow \bullet\text{F} + \bullet\text{CCl}_3CFCl3→∙F+∙CCl3
CFCl3→∙Cl+∙CFCl2\text{CFCl}_3 \rightarrow \bullet\text{Cl} + \bullet\text{CFCl}_2CFCl3→∙Cl+∙CFCl2
CFCl3→∙C+∙FCl3\text{CFCl}_3 \rightarrow \bullet\text{C} + \bullet\text{FCl}_3CFCl3→∙C+∙FCl3
CFCl3→∙Cl2+∙CFCl\text{CFCl}_3 \rightarrow \bullet\text{Cl}_2 + \bullet\text{CFCl}CFCl3→∙Cl2+∙CFCl
