`KMnO_(4)` (purple) is reduced to `K_(2)MnO_(4)` (green) by `SO_(3)^(2-)` in basic medium. `1` mole of `KMnO_(4)` is reduced by

KMnO_(4) in basic medium is reduced to

KMnO_(4) in basic medium is used as

KMnO_(4) in basic medium is used as

One mole of FeC_(2)O_(4) is oxidised by KMnO_(4) in acidic medium. Number of moles of KMnO_(4) used are

100mL of 1M KMnO_(4) oxidised 100mL of H_(2)O_(2) in acidic medium ( when MnO_(4)^(-) is reduced to Mn^(2+) ) , voluem of same KMnO_(4) required to oxidise 100mL of H_(2)O_(2) in basic medium ( when MnO_(4)^(-) is reduced to MnO_(2) ) will be :

In the reactant of KMnO_(4) with an oxalate in acidic medium. MnO_(4)^(-) is reduced to Mn^(2+) and C_(2)O_(4)^(2-) is oxidised to CO_(2) . Hence, 50 ml of 0.02 M KMnO_(4) is equivalent to

K_(2)MnO_(4)+H^(+) to KMnO_(4)+MnO_(2)darr