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0.169 gram of copper is deposited on the...

`0.169` gram of copper is deposited on the cathode by a current of `32` milliamperes passing for 5 hours through a solution of copper sulphate. Determing the current efficiency. [ Atomic weight of `Cu=63.6]`

A

`98%`

B

`78%`

C

`69%`

D

`89%`

Text Solution

Verified by Experts

The correct Answer is:
4
Current efficiency`=(0.169)/([(3600xx32xx10^(_3)xx5xx(63.5)/(2))/(96500)])xx100%=89%`
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