Hydrogen peroxide oxidises `[Fe(CN)_(6)]^(4-)` to `[Fe(CN)_(6)]^(3-)` in acidic medium but reduces `[Fe(CN)_(6)]^(3-)` to `[Fe(CN)_(6)]^(4-)` in alkaline medium. The other products formed are, respectively

Options

A. `H_(2)O and (H_(2)O+O_(2))`
B. `H_(2)O and (H_(2)O+OH^(-))`
C. `(H_(2)O+O_(2))andH_(2)O`
D. `(H_(2)O+O_(2)) and (H_(2)O+OH^(-))`

Answer

A

Explanation

`2[Fe(CN)_(6)]^(4-)+H_(2)O_(2)+2H^(+)rarr2[Fe(CN)_(6)]^(3-)+2H_(2)O`
`2[Fe(CN)_(6)]^(3-)+H_(2)O_(2)+2OH^(-)rarr2[Fe(CN)_(6)]^(4-)+O_(2)+2H_(2)O`.