1.

Which one of the followoing reacitons demonstrates that H_(2)O_(2) acts as an oxidising agent in the basic medium?

Answer»

`Na_(2)CO_(3) + H_(2)O_(2) to Na_(2)O_(2) + H_(2)O + CO_(2)`
`2[Fe(CN)_(6)]^(3-) + H_(2)O_(2) + 2OH^(-) to 2[Fe(CN)_(6)]^(4) + 2H_(2)O + O_(2)`
`Mn^(2+) + H_(2)O_(2) + 2OH^(-) to MnO_(2) + 2H_(2)O`
`MnO_(2) + H_(2)O_(2) + 2H^(+) to Mn^(2+) + 2H_(2)O + O_(2)`

SOLUTION :Here `Mn^(2+)` is oxidised to `MnO_(2)` is BASIC medium by `H_(2)O_(2)`.


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