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10 g mixture of K(2)Cr(2)O(7) and KMnO(4...

10 g mixture of `K_(2)Cr(2)O_(7)` and `KMnO_(4)` was treated with excess of KI in acidic medium. Iodine liberated `100 cm^(3)` of 2.2 N sodium thiosulphate solution for titration. If the mass percent of `KMnO_(4)`in the mixture Z, then what is the value of 2Z/5 ?

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0.5 g mixture of K_(2)Cr_(2)O_(7) and KMnO_(4) was treated with excess of KI in acidic medium. Iodine liberated required 100 cm^(3) of 0.15N sodium thiosulphate solution for titration. Find the per cent amount of each in the mixture.

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