Question

84 g iron ore containing x percent of iron was taken in a solution containing all the iron in ferrous condition. The solution required x cc of a dichromatic solution for oxidizing the iron content to ferric state. Calculate the strength of dichromatic solution.

Answer 1

Answer:

Meq. of Fe= Meq. of K

2

Cr

2

O

7

56

0.84×

100

x

×1000=x×N ⟹N=0.15

Hence, the strength of dichromate solution will be 0.15 N.

Explanation:

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