CAPE Chemistry Unit 2 · 2012 · Paper 1 · Question Q42

A balanced equation for the photochemical decomposition of Freon-11 is

1. (A)\text{CCl}_3\text{F(g)} \xrightarrow{h\nu} 2\text{Cl}^\bullet\text{(g)} + \text{CClF}^\bullet
2. (B)\text{CCl}_3\text{F(g)} \xrightarrow{h\nu} \text{CCl}_3^\bullet\text{(g)} + \text{F}^\bullet\text{(g)}
3. (C)\text{CCl}_3\text{F(g)} \xrightarrow{h\nu} \text{Cl}^\bullet\text{(g)} + \text{CCl}_2\text{F}^\bullet\text{(g)}
4. (D)\text{CCl}_3\text{F(g)} \xrightarrow{h\nu} 3\text{Cl}^\bullet\text{(g)} + \text{CF}^\bullet\text{(g)}

This question uses a figure or table from the paper — you'll see it when you practise.