Questions
The number of electrons required to deposit 6.35 g of copper at the cathode during the electrolysis of an aqueous solution of copper sulphate will be (Given: Atomic mass of Cu= 63.5 u, NA is Avogadro constant)
detailed solution
Correct option is C
Amount of Cu to be deposited at the cathode is
Since 2 electrons are required to convert ion into Cu, the amount of electrons required to deposit 0.10mol of Cu will be 0.20 mol. The number of electrons required will be (0.20mol) i.e. .
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