`H_(2)O_(2)` is a powerful oxidising agent. It is an electron acceptor in acidic as well as in alkaline medium. It can also act as reducing agent towards oxidising agents. In alkaline medium, the reducing nature of `H_(2)O_(2)` is even more effective
Decolourisation of acidified `KMnO_(4)` occurs when `H_(2)O_(2)` is added to it. This is due to

Options

A. Oxisation of `KMnO_(4)`
B. Reducing of `KMnO_(4)`
C. Both oxidation and reduction of `KMnO_(4)`0
D. none of these

Explanation

(b) In the acidic medium `KMnO_(4)` (violet ) is reduced to `K_(2)SO_(4) and MnSO_(4)` which are both colourless.