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

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 `150 cm^(3)` of 0.10 N solution of thiosulphate solution for titration.
Find the percentage of `K_(2)Cr_(2)O_(7)` in the mixture :

A

14.64

B

34.2

C

65.69

D

50

Text Solution

Verified by Experts

The correct Answer is:
A
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