In which of the following reactions `H_(2)O_(2)` acts as reducing agent?
`(I) H_(2)O_(2)+2H^(+)+2e^(-) to 2H_(2)O`
`(II) H_(2)O_(2)-2e^(-) to O_(2)+2H^(+)`
`(III) H_(2)O_(2)+2e^(-) to 2OH^(-)`
`(IV) H_(2)O_(2)+2OH^(-)-2e^(-) to O_(2)+2H_(2)O`

Explanation

(d) `H_(2)O_(2)` acts as a reducing agent in both these reactions.