Three faradyas of electricity was passed through an aqueous solution of iron (II) bromide. The mass of iron metal (atomic mass-56) deposited at the cathode is
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a
56 g
b
84 g
c
112 g
d
168 g
answer is B.
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Detailed Solution
Mole of Fe deposited =12×3=1.5 moleWFe=1.5×56=84 g