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  4. Two Faraday of electricity is passed through a solution of CuSO4. The mass of copper deposited at the cathode is (At. mass of Cu = 63.5 u)

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Q. Two Faraday of electricity is passed through a solution of $CuSO_4$. The mass of copper deposited at the cathode is
(At. mass of $Cu\, = \,63.5\, u$)

JEE MainJEE Main 2015Electrochemistry

Solution:

Equivalent mass of copper $=\frac{\text { Atomic mass }}{ V \text { alency }}$
$=\frac{63.5}{2}=31.75$
Amount of copper deposited by $2$ faraday $=2 \times 31.75$
$=63.5 \,g$.