Write the chemical reaction to justify that hydrogen peroxide can function as an oxidizing as well as reducing agent.

Explanation

`toH_(2)O_(2)` has the ability to function as an oxidising agent as well as reducing agent in both acid and alkaline solutions.
`to` In `H_(2)O_(2)` oxidation state of oxygen is -1. It oxidised to `O_(2)`. Here `H_(2)O_(2)` is reductant.
`toH_(2)O_(2)` can be reduced to `H_(2)O(or)OH^(-)`. Here `H_(2)O_(2)` is oxidant.
i) Oxidising action in acidic medium :
`2Fe_((aq))^(+2)+2H_((aq))^(+)+H_(2)O_(2(aq))to2Fe_((aq))^(+3)+2H_(2)O_((l))`
ii) Reducing action in acidic medium :
`2MnO_(4)^(-)+6H^(+)+5H_(2)O_(2)to2Mn^(+2)+8H_(2)O+5O_(2)`
iii) Oxidising action in basic medium :
`2Fe^(+2)+H_(2)O_(2)to2Fe^(+3)+2OH^(-)`
iv) Reducing action in basic medium : `2MnO_(4)^(-)+3H_(2)O_(2)to2MnO_(2)+3O_(2)+2H_(2)O+2OH^(-)`