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Three faradays of electricity was passed...

Three faradays of electricity was passed through an aqueous solution of iron (II) bromide. The weight of iron metal (at.wt. = 56) deposited at the cathode is (in grams)

A

56

B

56

C

56

D

168

Text Solution

Verified by Experts

The correct Answer is:
B
Atomic weight of Fe = 56g
Equivalent weight of Fe `= 56/2 = 28g`.
28g of Fe can be deposited by IF of current.
`therefore` Weight of Fe deposited by `3F = 28 xx 3 = 84 g`
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