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A certain current liberates 0.5 g of hyd...

A certain current liberates 0.5 g of hydrogen in 2 h. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution?

A

12.7 g

B

15.8 g

C

31.8 g

D

63.5 g

Text Solution

Verified by Experts

The correct Answer is:
B
Applying Faraday.s second law
`w_(H_2)/w_(Cu)=E_(H_2)/E_(Cu),0.5/w_(Cu)=1/31.75`
`w_(Cu)=31.75xx0.5=15.8` g
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