1.

A mixture of 1 mole each of FeSO_(4) and FeC_(2)O_(4) are taken then :

Answer»

`n_("MOLES")` of `KMnO_(4)` required to oxidise `Fe^(2+)`to `Fe^(3+)` in acidic medium is 0.4
`n_("moles")`of `KMnO_(4)` required to oxidise `SO_(4)^(2-)` is `6//5`
`n_("moles")` of `KMnO_(4)` required to oxidise oxalate ion is 0.4
The TOTAL number of moles of `KMnO_(4)` required to completely oxidise the mixture is 0.8.

Answer :ACD


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