Assertion (A): `H_(2)O_(2)` acts only as an oxidising agnet.
`H_(2)O_(2)rarrH_(2)O+O`
Reason (R ): All peroxides behave as oxidising agnets only.

Options

A. If both `(A)` and `(R )` are correct and `(R )` is the correct explanation of `(A)`.
B. If both `(A)` and `(R )` are correct but `(R )` is not the correct explanation of `(A)`.
C. If `(A)` is correct but `(R )` is incorrect.
D. If both `(A)` and `(R )` are incorrect.

Explanation

`H_(2)O_(2)` acts both as an oxidising and a reducing agent.
`(H_(2)O_(2)rarrO_(2)+2H^(o+)+2e^(-))`
(Oxidation, acts as a reducing agent)
`(2e^(-)+2H^(o+)+H_(2)O_(2)rarr2H_(2)O)`, (Reduction, acts as oxidising agent)
In `H_(2)O_(2)`, the oxidation number of `O` is `-1`. `O` can have a minimum oxidation number of `-2` and a maximum oxidation number of Zero. The oxidation number can either decrease from `-1` to `-2` or can increase from `-1` to zero.
Correct `(R )`:
All peroxides can act either as an oxidising agent or as a reducing agent or both.