Redox Reactions And Electrochemistry Ques 629

Question: In the electrolysis of CuCl2 solution, the mass of the cathode increased by 3.2 g. What occured at the copper anode-

Options:

A) 0.12 litre of Cl2 was liberated

B) 0.56 litre of O2 was liberated

C) 0.1 mol Cu2+ passed into the solution.

D) 0.05 mol of Cu2+ passed into the solution.

Show Answer

Answer:

Correct Answer: D

Solution:

[d] The amount, of copper deposited at cathode by reduction of Cu2+ ions is 3.263=0.05 moles. The same amount 0.05 mole of Cu2+ must pass into solution from anode by oxidation



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