Q. Mole of $F e S O_{4}$ required to be oxidised by one mole of $K_{2} C r_{2} O_{7}$ in acidic medium is

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A

$1$

45%

B

$\frac{1}{2}$

30%

C

$6$

18%

D

$\frac{1}{6}$

7%

Solution:

Correct answer is (c) $6$

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