Question

the concentration of cupric ions is an aqueous solutions remains unchanged when it is electrolyzed with copper electrodes. (true or false)​

Answer 1

Answer:

Correct option is

C

2OH

−

→H

2

O+

2

1

O

2

+2e

−

When an aqueous solution of CuSO

4

is subjected to electrolysis using copper electrodes, the following reactions take place at cathode and anode.

CuSO

4

→Cu

2+

+SO

4

2−

Reduction at cathode:

Cu

2+

+2e

−

→Cu

Oxidation at anode:

2OH

−

→H

2

O+

2

1

O

2

+2e

−

.

Hence, the correct answer is option C.