Chemistry 0620 · 4 Electrochemistry
4.1 Electrolysis
Define electrolysis, identify cell components, predict products of molten and aqueous electrolytes, describe electroplating, and construct ionic half-equations.
- Questions
- 415
- Years
- 2010–2026
- Multiple choice
- 257
- Written answer
- 158
- Average marks
- 4.5
Practise electrochemistry questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 11, 12, 13146
- Paper 2variants 21, 22, 23141
- Paper 3variants 31, 32, 3367
- Paper 4variants 41, 42, 4339
- Paper 6variants 61, 62, 6320
- Paper 5variants 522
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | 6 | 22 | – | 28 |
| 2024 | – | 1 | – | 1 |
| 2023 | 4 | 14 | 15 | 33 |
| 2022 | 7 | 15 | 13 | 35 |
| 2021 | 5 | 15 | 10 | 30 |
| 2020 | – | 12 | 13 | 25 |
| 2019 | 6 | 12 | 15 | 33 |
| 2018 | 6 | 18 | 17 | 41 |
| 2017 | 7 | 12 | 19 | 38 |
| 2016 | 3 | 16 | 19 | 38 |
| 2015 | 5 | 12 | 9 | 26 |
| 2014 | – | 7 | 9 | 16 |
| 2013 | – | 5 | 6 | 11 |
| 2012 | – | 9 | 9 | 18 |
| 2011 | – | 13 | 8 | 21 |
| 2010 | – | 9 | 12 | 21 |
