Question

A certain current liberated 0.504 gm 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 gm
• B. 15.9 gm
• C. 31.8 gm
• D. 63.5 gm

Answer 1

Answer: (B)

15.9 gm

Answer 2

$\frac{\text{Weightof}Cu}{\text{Weightof}H_{2}} = \frac{\text{Eq.weightof}Cu}{\text{Eq.weight.of}H}$

$\frac{\text{Weightof}Cu}{0.50} = \frac{63.6/2}{1}$

$\text{Weightof}Cu = 15.9$ gm.