A mixture of KMnO_(4) and K_(2)Cr_(2)O_(7) weighing 0.24 g on being tr – InterviewSolution

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1.	A mixture of KMnO_(4) and K_(2)Cr_(2)O_(7) weighing 0.24 g on being treated with KI in acid solution liberates just sufficient I_(2) to react with 60 mL of 0.1 N Ha_(2)S_(2)O_(3) solution . Calculate percentage of Cr and Mn in the mixture .
Answer» Solution :`underset(+7) (KMnO_(4)) to underset(+2) (Mn^(2+))and underset(+12)(K_(2)Cr_(2)O_(7))to underset(+6)(2Cr^(3+)]`

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