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CUET · CHEMISTRY · PYQ PAPER 2023

What will happen during the electrolysis of aqueous solution of \(CuSO_4\) by using platinum electrodes?
A. Copper will deposit at cathode.
B. Copper will deposit at anode.
C. Oxygen will be released at anode.
D. Copper will dissolve at anode.
Choose the correct answer from the options given below:

  1. A C and D only
  2. B A and C only
  3. C A and B only
  4. D B and D only
Verified Solution

Answer & Solution

Correct Answer

(B) A and C only

Step-by-step Solution

Detailed explanation

At cathode: \(Cu^{2+}(aq) + 2e^{-} \rightarrow Cu(s)\) At anode: \(2H_2O(l) \rightarrow O_2(g) + 4H^{+}(aq) + 4e^{-}\) Copper will deposit at cathode. Oxygen will be released at anode. Options A and C are correct.