Question

Which process occurs in the electrolysis of
aqueous solution of nickel chloride at nickel
anode?
1. Ni2+ + 2e-→ Ni
2.2H+ + 2e-→ H2
3. 2Cl-→ Cl2 + 2e-
4. Ni → Ni2+ + 2e-

Answer 1

Given:

The electrolysis of aqueous solution of nickel chloride at nickel anode.

To find:

Which process occurs in the electrolysis of an aqueous solution of nickel chloride at nickel anode?

Solution:

Electrolysis aqueous solution nickel(II) chloride to produce nickel and chlorine.

Cathodic process: Ni2+ + 2e- → Ni

Anodic process: 2Cl- - 2e- → Cl2

Option 1. Ni2+ + 2e-→ Ni is correct.

Answer 2

Answer:

option 1 is correct because Ni is an attackable electrode.