In alkaline medium, `H_(2)O_(2)` reacts with `Fe^(3+) and Mn^(2+)` separately to give:

Options

A. `Fe^(4+)` and `Mn^(4+)`
B. `Fe^(2+)` and `Mn^(2+)`
C. `Fe^(2+)` and `Mn^(4+)`
D. `Fe^(4+)`f and `Mn^(3+)`

Answer

C

Explanation

`K_(3)Fe(CN)_(6)` is reduced by `H_(2)O_(2)` in alkaline medium.
`2K_(3)Fe(CN)_(6)+2KOH+H_(2)O_(2)rarr2K_(4)Fe(CN)_(6)+2H_(2)O+O_(2)`
`Mn(OH)_(2)` is oxidised by `H_(2)O_(2)` in alkaline medium.
`Mn(OH)_(2)+H_(2)O_(2)rarrMnO_(2)+2H_(2)O`