In estimation of Fe^(2+)by KMnO_(4) HNO_3cannot be used in place of H,

1.	In estimation of Fe^(2+)by KMnO_(4) HNO_3cannot be used in place of H,SO, because
Answer» `HNO_3`oxidised`Fe^(2+)` `HNO_3`reduces `MnO_4^(-)` `HNO_3`reduces `Fe^(2+)` `HNO_3`oxidised `Mn^(2+)` Solution :`NACL RARR NA^(+) +Cl^(-)` `H_(2) O rarr H^(+) +OH^(-)` Due to high discharge potential of `Cl^(-)`discharge FIRST.

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