Question

During decomposition of $H_2{O}_2$, it undergoes:

• A. oxidation
• B. reduction
• C. redox reaction
• D. disproportionation

Answer 1

The correct option is D disproportionation

The decomposition reaction of $H_2{O}_2$ is as follows:
$2H_2{O}_2\to 2H_{2}O+O_2$

This is a disproportionation reaction as oxidation state of $O$ changes from $-1$ to $-2$ and $0$.

Hence, during decomposition of $H_2{O}_2$, it undergoes disproportionation.