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Two different electrolytic cells filled ...

Two different electrolytic cells filled with molten `Cu(NO_3)_2` and molten `Al(NO_3)_3` respectively are connected in series. When electricity is passed 2.7 gram Al is deposited on electrode. Calculate the weight of Cu deposited on cathode.

A

190.5 gram

B

9.525 gram

C

63.5 gram

D

31.75 gram

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