Chemistry · Oct / Nov 2024 · Paper 12 · Question 13
5070Electrolysis
An aqueous mixture of copper(II) nitrate and silver nitrate is electrolysed with pure copper electrodes. Which ionic half-equation describes the change occurring at the anode?
- ACu → Cu²⁺ + 2e⁻
- BCu²⁺ + 2e⁻ → Cu
- CAg → Ag⁺ + e⁻
- DAg⁺ + e⁻ → Ag
As printed in the paper
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Correct answer: A. Cu → Cu²⁺ + 2e⁻
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