The number of mole of `KMnO_(4)` that will be needed to react completely with one mole of ferrous oxalate in acidic solution is:

Options

A. `3//5`
B. `2//5`
C. `4//5`
D. 1

Answer

A

Explanation

`3 underset(3M)MnO_(4)^(-) + 5 (Fe^(2+) + underset(5M)C_(2) O_(4)^(2-)) + 24 H^(+) rarr`
`3Mn_(2) + 5 Fe^(3+) + 10CO_(2) + 12 H_(2) O`
Thus `5M` of `Fe_(2)O_(4)` is oxidised by `3M` of `KMnO_(4)` then `1M` of `FeC_(2) O_(4)` is oxidised by `3//5` mole of `KMnO_(4)`