Question

Which of the following comes out at the anode during electrolysis of copper chloride?

• A. Copper
• B. Hydrogen
• C. Copper chloride
• D. Chlorine

Answer 1

The correct option is D Chlorine

Chlorine comes out at the anode during electrolysis of copper chloride.

This is because chloride ions have lower discharge (or lower reduction) potential than hydroxide ions.

$C{l}^{-}\to Cl+e^{-}Cl+Cl\to C{l}_2\uparrow$

Hence, the correct option is D.