\(C l_{2}+H_{2} O \rightarrow H C l+H O C l\)
\(H O C l \rightarrow H C l+[O]\)
Oxidising property is due to nascent oxygen
\(3 \mathrm{HClO} \rightarrow 2 \mathrm{HCl}+\mathrm{HClO}_{3}\)