A certain current liberates `0.5g` 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 ?

Options

A. 12.7 gm
B. 15.9 gm
C. 31.8 gm
D. 63.5 gm

Answer

B

Explanation

`("Weight of Cu")/("Weight of "H_(2))=("Eq. weight of "Cu)/("Eq. weight. Of H")`
`("Weight of Cu")/(0.50)=(63.6//2)/(1)`
Weight of Cu=15.9gm