Question
Why does ozone act as a powerful oxidising agent?
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Answer
Ozone decomposes to liberate nascent oxygen, hence it is a powerful oxidising agent. $O_{3(g)} \rightarrow O_{2(g)} + O$
For example :
For example :
- It oxidises lead sulphide $(PbS)$ to lead sulphate
- $(PbSO_4)$.$pbS_{(s)} + 4O_{3(g)}\rightarrow PbSO_{(s)} + 4O_{2(g)}$
- Potassium iodide, $KI$ is oxidised to iodine, $I_2$ in the solution.
- $2KI_{(aq)} + H_2O_{(1)} + O_{3(g)} \rightarrow 2KOH_{(aq)} + I_{2(s)} + O_{2(g)}$
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