Q. In electrolysis of aqueous copper sulphate, the gas at anode and cathode are
A) $O_{2}and\ H_{2}$
B) $H_{2}\ and\ O_{2}$
C) ${SO}_{2}\ and\ H_{2}$
D) ${SO}_{3}\ and\ O_{2}$
Explanation
(a)
Cathode $2H_{2}O + 2e^{-} \rightarrow H_{2} + 2{OH}^{-}$
Anode : $H_{2}O \rightarrow 2H^{+} + \frac{1}{2}O_{2} + 2e^{-}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.