Few drop of `HNO_(3)` are added to group if before precoodinh to group III in order to :A. Covert `Fe^(2+)` to `Fe^(3+)`B. Convert` Fe^(3+)` to `Fe^(2+)`C. ppt group IIID. None of these

Few drop of `HNO_(3)` are added to group if before precoodinh to group

1.	Few drop of `HNO_(3)` are added to group if before precoodinh to group III in order to :A. Covert `Fe^(2+)` to `Fe^(3+)`B. Convert` Fe^(3+)` to `Fe^(2+)`C. ppt group IIID. None of these
Answer» Correct Answer - a `Fe^(2+)` is oxidised in `Fe^(3+)` in order to precipitate `Fe(OH)_(3)`

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Few drop of `HNO_(3)` are added to group if before precoodinh to group III in order to :A. Covert `Fe^(2+)` to `Fe^(3+)`B. Convert` Fe^(3+)` to `Fe^(2+)`C. ppt group IIID. None of these

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