0654.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 0654.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 7 of 7 written questions. Open one to see it on the real paper.
- 0973/31 · May/June 2026 · Q8b(ii)[1]
State the name of the negative electrode.
See it on the paper → - 0973/31 · May/June 2025 · Q6b(i)[1]
On Fig. 6.1, draw a label line and the letter A to indicate the anode and a label line and the letter C to indicate the cathode. (i)
See it on the paper → - 0973/31 · May/June 2025 · Q6b(ii)[1]
On Fig. 6.1, draw a label line and the letter E to indicate the electrolyte.
See it on the paper → - 0973/31 · May/June 2025 · Q6b(iii)[2]
Name the gas formed at the anode and the gas formed at the cathode in Fig. 6.1. anode
See it on the paper → - 0973/31 · October/November 2022 · Q8e(i)[1]
The key is an electrode. State which electrode is the key.
See it on the paper → - 0973/32 · May/June 2022 · Q8c(i)[2]
State which letter, A–F, in Fig. 8.1 identifies the: • anode • cathode • electrolyte.
See it on the paper → - 0973/31 · May/June 2020 · Q8c[2]
Metals are covered with a thin layer of copper during electroplating. Fig. 8.1 shows apparatus and materials to electroplate a metal key with copper. copper electrode d.c. power supply – + metal key aqueous copper sulfate Fig. 8.1 Draw a diagram to show the apparatus and materials set up to electroplate the metal key w...
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What examiners said
Vague labels to the apparatus were not given credit and candidates should be encouraged to label carefully and precisely. Candidates also commonly labelled the sides of the cell which are not the electrodes.
— Examiner report, May/June 2025, 0973/31 Q6(b)(i) (Cambridge)
Many candidates labelled the black bung. Others, whether intentionally or unintentionally, labelled the bubbles of gas. Candidates should be encouraged to be unambiguous with their labelling.
— Examiner report, May/June 2025, 0973/31 Q6(b)(ii) (Cambridge)
Hydrogen was more commonly known than oxygen, but candidates often placed it at the anode. A number of candidates thought sulfur was produced at the anode with hydrogen at the cathode, only gaining one mark. In some cases, candidates introduced incorrect gases such as methane and carbon dioxide.
— Examiner report, May/June 2025, 0973/31 Q6(b)(iii) (Cambridge)
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