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:
- A C and D only
- B A and C only
- C A and B only
- D B and D only
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.
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