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The mass of copper that will be deposite...

The mass of copper that will be deposited at cathode in electrolysis of `0.2M` solution of copper sulphate when a quantity of electricity equal to that required to liberate `2.24L` of hydrogen from `0.1M` aqueous `H_(2)SO_(4)` is passed `(` atomic mass of `Cu=63.5)` will be

A

1.59g

B

3.18g

C

6.35g

D

12.70g

Text Solution

Verified by Experts

The correct Answer is:
C
Wt. of substance liberated at electrodes are in ratio of their equivalent weights.
`therefore (W_(Cu))/(W_(H))=(E_(Cu))/(E_(H))rArrW_(Cu)=(63.5)/(2)xx(2.24)/(22.4)xx(2)/(1)`
=6.35g
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