0653.C4.1.02 — Identify in simple electrolytic cells: (a). the anode as the positive electrode (b). the cathode as the negative electrode (c). the electrol: past paper questions
Real questions on 0653.c4.1.02 — identify in simple electrolytic cells: (a). the anode as the positive electrode (b). the cathode as the negative electrode (c). the electrol
The newest 12 of 12 written questions. Open one to see it on the real paper.
- 0653/32 · February/March 2025 · Q6d[1]
Inert electrodes are used in each electrolysis. Name one substance used as inert electrodes.
See it on the paper → - 0653/32 · October/November 2024 · Q8a(i)[1]
Label the cathode on Fig. 8.1.
See it on the paper → - 0653/32 · October/November 2024 · Q8a(iii)[1]
State the name of an element used to make inert electrodes.
See it on the paper → - 0653/33 · October/November 2024 · Q8a(i)[1]
Label the cathode on Fig. 8.1.
See it on the paper → - 0653/33 · October/November 2024 · Q8a(iii)[1]
State the name of an element used to make inert electrodes.
See it on the paper → - 0653/21 · May/June 2024 · Q18[1]
Which rows identify the electrode products for the named electrolyte?
See it on the paper → - 0653/42 · February/March 2024 · Q5a(ii)[1]
Suggest why the electrodes are inert.
See it on the paper → - 0653/42 · February/March 2024 · Q5a(iii)[1]
Describe what happens at the negative electrode in terms of electron transfer.
See it on the paper → - 0653/43 · October/November 2023 · Q2a(ii)[3]
Describe what happens to the chloride ions at the positive electrode during the electrolysis. Use ideas about ions, electrons, atoms and molecules in your answer.
See it on the paper → - 0653/43 · October/November 2023 · Q2b(i)[1]
State one property of platinum that makes it suitable to use as an electrode.
See it on the paper → - 0653/42 · February/March 2023 · Q2a[1]
State the name of the positive electrode and the negative electrode. positive electrode negative electrode
See it on the paper → - 0653/33 · October/November 2022 · Q2c[2]
State the products at the anode and at the cathode when concentrated aqueous sodium chloride is electrolysed using inert electrodes. anode cathode
See it on the paper →
What examiners said
This question was generally answered well. Others were not familiar with the term inert electrodes, as shown by incorrect answers such as lead and iron. Candidates should be reminded that inert electrodes are used so that they do not take part in the reaction, so they must be unreactive.
— Examiner report, February/March 2025, 0653/32 Q6(d) (Cambridge)
Most candidates correctly expressed the idea that the electrodes must not react. Any wording that suggested this idea was accepted. Answers such as “the electrodes must have a full outer shell” were not accepted.
— Examiner report, February/March 2024, 0653/42 Q5(a)(ii) (Cambridge)
Candidates had to refer directly to the gain of electrons by positive ions. The wording in the question was intended to prompt candidates to mention electrons but this was often missed. Some candidates suggested that electrons were gained by chloride ions or the electrode. Credit was awarded for a correct electrode equation showing electron gain by zinc ions.
— Examiner report, February/March 2024, 0653/42 Q5(a)(iii) (Cambridge)
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