In acidic medium, aqueous potassium permanganate with hydrogen peroxide gives

Options

A. `Mn^(3+), H_(2)`
B. `Mn^(2+), O_(2)`
C. `Mn^(2+), H_(2)`
D. `MnO_(2), O_(3)`

Answer

B

Explanation

The reaction of aqueous `KMnO_(4) " with "H_(2)O_(2)` in acidic medium is
`2KMnO_(4)+5H_(2)O_(2)+3H_(2)SO_(4) rarr 2MnSO_(4)+5O_(2)+8H_(2)O+K_(2)SO_(4)`
In the reaction, `KMnO_(4), " oxidise " H_(2)O_(2) " to "O_(2) " and itself "[MnO_(4)^(-)]` gets reduced to `Mn^(2+)` ions as `MnSO_(4)`.
Hence, aqueous solution of `KMnO_(4) " with "H_(2)O_(2)` yields `Mn^(2+) " and "O_(2)` in acidic conditions.