Question

During electrolysis of copper sulphate, bubbles are formed at the cathode.

• A. True
• B. False

Answer 1

The correct option is B False

When copper sulphate is electrolyzed, copper and sulphate ions are formed. Then, reddish brown copper is deposited at the cathode and bubbles of oxygen are evolved at the anode. The reactions are as follows:
Anode:
$C{u}^{2+}+2e^{-}\to Cu$
Cathode:
$4O{H}^{-}\to O_2+2H_{2}O+4e^{-}$