Chlorine is used to purify drinking water

CHEMISTRY · Subjective · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

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.

Related theory

Redox Reactions
Balancing Equations
Half-reaction method
Balancing Redox Reactions
Oxidation and reduction

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