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Chlorine is used to purify drinking wate...

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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Balanced equations for the given data is
`Cl_(2)+SO_(2)+H_(2)Oto SO_(3)+2H^(+)+Cl^(-)`
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