A current of 0.1A was passed for 4hr thr...

A current of 0.1A was passed for 4hr through a solution of cuprocyanide and 0.3745 g of copper was deposited on the cathode. Calculate the current efficiency for the copper deposition. (Cu GAM 63.5 or Cu-63.5)

A

`79%`

B

`39.5%`

C

`63.25%`

D

`63.5%`

Text Solution

Verified by Experts

The correct Answer is:

A

`m("theoretical")=(63.5xx0.1xx7200)/96500=0.4738` g
`therefore % "efficiency" =0.3745/0.4738xx100=79%`

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