Chlorine is used to purify drinking water. Excess of chlorine is harmful. The excess of chlorine is removed by treating with sulphur dioxide. Present a balanced equation for this redox change taking place in water.

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The given redox reaction can be represented as: The oxidation half reaction is: The oxidation number is balanced by adding two electrons as: The charge is balanced by adding 4H+ ions as: The O atoms and H+ ions are balanced by adding 2H2O molecules as: The reduction half reaction is: The chlorine...
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The given redox reaction can be represented as: The oxidation half reaction is: The oxidation number is balanced by adding two electrons as: The charge is balanced by adding 4H+ ions as: The O atoms and H+ ions are balanced by adding 2H2O molecules as: The reduction half reaction is: The chlorine atoms are balanced as: The oxidation number is balanced by adding electrons The balanced chemical equation can be obtained by adding equation (i) and (ii) as: read less
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