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

Chlorine is used to purify drinking water. Excess of chlorine is harmf

1.	Chlorine is used to purify drinking water. Excess of chlorine is harmful. The excess chlorine is removed by treating with sulphur dioxide. Present a balanced equation for the reaction for this redox change taking place in water.
Answer» L equation WOULD beReducing the half eqn is Balance the Cl ATOMS , Balance the oxidation number by adding the electrons.Oxidation of half equation is Balance the oxidation number by adding the electrons.Balancing the charge by adding H^{ + }ionsBalancing the oxygen atoms by adding the 2 { H }_{ 2 }OAdding both the eqn (i) and eqn (ii), we getThis is the BALANCED redox reaction.