Question

What weight of copper will be deposited by passing
2 Faradays of electricity through a cupric salt
(Atomic weight of Cu=03.5)
(A) 2.0 gm
(B) 3.175 gm
(C) 63.5 gm
(D) 127.0 gm​

Answer 1

Explanation:

2F electricity implies 2 moles of electrons exchanged.

Cu

2+

+2e

−

→Cu

1 mole of Cu is formed from 2 moles of electrons.

Thus, weight of Cu=1×63.5=63.5g

Answer By

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Answer 2

63.5 gm

so the option is 63.5