Question

Chlorine water oxidises thiosulphates to:

• A. persulphate
• B. sulphide
• C. sulphate
• D. none of these

Answer 1

Answer: (C)

Chlorine is a oxidizing agent, when chlorine water react with Sodium thiosulphate, it oxidises sodium thiosulphate to sulphur which is formed as precipitate.

$N{a}_2{S}_2{O}_3$ $+$ $C{l}_2$ $+$ $H_{2}O$ $⟶$ $2HCl$ $+$ $N{a}_{2}S{O}_4$ $+$ $S$

Green Colur of chlorine water get change to Colourless Oxidate.