n-factors for Cu_(s)S and CuS when they react with KMnO_(4) in acidic

1.	n-factors for Cu_(s)S and CuS when they react with KMnO_(4) in acidic medium are
Answer» 7,7 6,6 6,8 8,6 Solution :(i). `{:(Cu_(2)^(1+)to3Cu^(2+)+2E^(-)),(S^(2-)toSO_(2)+6e^(-)(n=6)]):}(n=8)` (II). `CU^(2+)` does not CHANGE only `S^(2-)` changes to `SO_(2)` HENCE `n=6`.

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