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How many grams of potassium dichromate a...

How many grams of potassium dichromate are required to oxidise 20.0 g of `Fe^(2+) "in" FeSO_(4) "to" Fe^(3+)` if the reaction is carried out in acidic medium? Molar masses of `K_(2)Cr_(2)O_(7) "and" FeSO_(7)` are 294 and 152 respectively

A

6.45 g

B

7.45 g

C

8.45 g

D

9.45 g

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The correct Answer is:
A
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