Pottassium permanganate acts as an oxidant in neutral, alkaline as well as acidic media. The final product obtained from it in three condition are respectively:

Options

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

Explanation

`3e^(-)+2H_(2)O+MnO_(2)^(-)toMnO_(2)+4OH^(-) ("neutral medium")`
`e^(-)+MnO_(4)^(-)+8H^(+)+5e^(-) to Mn^(2+)+4H_(2)O("acidic medium")`
`MnO_(4)^(-)+8H^(+)+5e^(-) to Mn^(2+)+4H_(2)O("acidic alkaline medium")`
Therefore, (B) option is correct.