The reaction of aqueus `KMnO_(4)` with `H_(2)O_(2)` in acidic conditions gives

Options

A. `Mn^(4+)` and `O_(2)`
B. `Mn^(2+)` and `O_(2)`
C. `Mn^(2+)` and `O_(3)`
D. `Mn^(4+)` and `MnO_(2)`

Answer

B

Explanation

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