Question

$H_2{O}_2$ acts as an oxidising agent in:

• A. neutral medium
• B. acidic medium
• C. alkaline medium
• D. acidic as well as alkaline medium

Answer 1

The correct option is D acidic as well as alkaline medium

Because the oxidation state of oxygen in $H_2{O}_2$ is $-1$ which can be oxidized to ${}^{\prime }{O}^{\prime }$ oxidation state by removing an $e^{-}$ or else can be reduced by adding an $e^{-}$ and oxidation state would be reduced to $-2$ oxidizing agent means oxidizing others itself getting reduced.

Acidic: $H_2{O}_2+2H^{+}+2e^{-}\to 2H_{2}O$.

Basic: $H_2{O}_2+2e^{-}\to 2{OH}^{-}$