Question

Consider the reaction of sodium hypochlorite with iodine. Which species
is oxidised and which is reduced? (Give the oxidation numbers of the
atoms to illustrate your answer.)

Answer 1

Reactions are-

In the process, chlorine is reduced from an oxidation state of $+1$ in $ClO^-$ to $-1$ in $Cl$

In this process, iodine is oxidised from oxidation state of $-1$ in $I^-$ to in $I_2$

Redox reaction:

$\overset{+1}{Cl}O^-(aq)+2H^+(aq)+2\overset{-1}{I^-}(aq)\to$ $\overset{-1}{Cl^-}(aq)+H_2O(l)+\overset{0}{I_2}(aq)$