If equal volumes of 0.1 M KMnO4 and 0.1 M K2Cr2O7 solutions are allowed to oxidise Fe2+ to Fe3+ in acidic medium, then Fe2+ oxidised will be :-

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more by KMnO4

more by K2CrO7

equal in both cases

can't be determined

answer is B.

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Detailed Solution

K2Cr2O7 have greater n factor as compaire KMnO4 so same volume of K2Cr2O7 will oxidise more amount of Fe+2.

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