Question

Which of the below given options are correct for the electrolysis of aqueous copper sulphate solution with copper electrode?

• A. Reddish brown deposit is formed at cathode
• B. Reddish brown deposit is formed at anode
• C. Since the electrode used here is copper no deposit will be formed.
• D. None

Answer 1

The correct option is A

Reddish brown deposit is formed at cathode

The ions present in the solution are $C{u}^{2+}$,$H^{+}$,${S{O}_4}^{2-}$ and $O{H}^{-}$, during the electrolysis of aqueous copper sulphate solution with copper electrode,below are the reactions happening at cathode and anode.

At Cathode:$C{u}^{2+}+2e^{-}->\underset{\text{Reddish brown deposit}}{Cu}$

At anode:$Cu->C{u}^{2+}+2e^{-}$