Question

Choose the correct statement(s) regarding the electrolysis of cupric chromate solution.

• A. Blue colour is found near the cathode.
• B. Yellow colour is found near the anode.
• C. Copper ions are found at anode.
• D. Chromate ions are found at cathode.

Answer 1

Answer: (A), (B)

The correct options are
A Blue colour is found near the cathode.
B Yellow colour is found near the anode.

The migration of ions take place during the electrolysis of cupric chromate solution. The positively charged copper ions, which are blue in colour, move towards the cathode while the negatively charged chromate ions, which are yellow in colour, move towards the anode. Hence, blue colour is found near the cathode and yellow colour is found near the anode.