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Question
What happens when ozone is passed in an aqueous solution of potassium iodide?
Very Short Answer
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Solution
When ozone is passed in an aqueous solution of potassium iodide, it is oxidised to iodine.
\[\ce{\phantom{..............}O3 -> O2 + [O]}\]
\[\ce{2KI + H2O + [O] -> 2KOH + I2}\]
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\[\ce{2KI + H2O + O3 -> 2KOH + I2 + O2}\]
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