Chemistry 5070 · 4 Electrochemistry
4.1 Electrolysis
Define electrolysis, identify cell components, describe charge transfer, predict products for molten and aqueous electrolytes, write ionic half-equations, and explain electroplating.
- Questions
- 193
- Years
- 2004–2026
- Multiple choice
- 132
- Written answer
- 61
- Average marks
- 3.4
Practise electrochemistry questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 01, 11, 12124
- Paper 4variants 04, 41, 4236
- Paper 2variants 02, 21, 2233
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 4 | – | 4 |
| 2023 | 4 | 5 | 9 |
| 2022 | 4 | 12 | 16 |
| 2021 | 8 | 7 | 15 |
| 2020 | 8 | 9 | 17 |
| 2019 | 7 | 8 | 15 |
| 2018 | 9 | 8 | 17 |
| 2017 | 6 | 8 | 14 |
| 2016 | 5 | 8 | 13 |
| 2015 | 8 | 4 | 12 |
| 2014 | 1 | 1 | 2 |
| 2013 | 1 | 2 | 3 |
| 2011 | 2 | 1 | 3 |
| 2009 | 6 | 7 | 13 |
| 2008 | 4 | 6 | 10 |
| 2007 | 2 | 3 | 5 |
| 2006 | 3 | 7 | 10 |
| 2005 | 4 | 4 | 8 |
| 2004 | – | 7 | 7 |
