A certain current liberated 0.504 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?
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a
12.7 g
b
31.8 g
c
15.9 g
d
63.5 g
answer is C.
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Detailed Solution
Weight of CuWeight of H2=Eq. weight of CuEq. weight of HWeight of Cu0.50=63.6/21Weight of Cu = 15.9 g