Question

From the following statements regarding $H_2{O}_2$ choose the incorrect statement:

• A. It can only act as an oxidising agent
• B. It decomposes on exposure to light
• C. It has to be stored in plastic or wax lined glass bottles in dark
• D. It has to be kept away from dust

Answer 1

The correct option is A It can only act as an oxidising agent

$H_2{O}_2$ acts as an oxidising as well as an reducing agent, because oxidation number of oxygen in $H_2{O}_2$ is $-1$. So, it can be oxidised to the oxidation state $0$ or reduced to the oxidation state $-2$.

$H_2{O}_2$ acts as an oxidising agent
$H_2{O}_2+N{a}_{2}C{O}_3\to N{a}_2{O}_2+H_{2}O+C{O}_2$
$H_2{O}_2$ acts as an reducing agent
$H_2{O}_2+S{O}_2\to H_{2}S{O}_4$

$H_2{O}_2$ decomposes on exposure to light. So, it has to be stored in plastic or wax linked glass bottles in the dark. It has to be kept away from dust.