Ncert Exercises & Solutions

What will happen during the electrolysis of an aqueous solution of CuSO₄ by using platinum electrodes?

(a)	Copper will deposit at cathode
(b)	Copper will deposit at the anode
(c)	Oxygen will be released at the anode
(d)	Copper will dissolve at the anode

The correct choice among the given is -

1.	(a, b)	2.	(b, c)
3.	(c, d)	4.	(a, c)

For electrolysis of an aqueous solution of CuSO₄.

{CuSO}_{4} (aq) \to {Cu}^{2 +} + {SO}_{4}^{2 -}

H_{2} O ⟶ 2 H^{+} + O^{2 -}

At Anode

2 O^{2 -} ⟶ O_{2} + 2 e^{-}

At Cathode

{Cu}^{2 +} + 2 e^{-} ⟶ Cu (s)