. A certain current liberates 0.5 g of hydrogen in 2 hours
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. 9 g
C: 31.8 g
D: 63. 5 g
Best Answer
Explanation:-
- By Faraday's second law:- when the charge passed is same then the ratio of masses deposited
at electron through substance will be in the ratio of their equivalent masses.
mass of hydrogen / mass of copper = equivalent mass of hydrogen / equivalent massof copper
- On rearranging
Final Answer:-
The correct answer is ( B) 15.9g
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