Chemistry 9701 · 26 Reaction kinetics
26.2 Homogeneous and heterogeneous catalysts
Explain homogeneous and heterogeneous catalysis, describing mechanisms like adsorption/desorption and multi-step regeneration.
- Questions
- 9
- Years
- 2015–2026
- Multiple choice
- 4
- Written answer
- 5
- Average marks
- 7.6
Practise reaction kinetics questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 4variants 41, 42, 435
- Paper 1variants 11, 12, 134
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 1 | – | 1 |
| 2022 | 1 | 1 | 2 |
| 2021 | 2 | – | 2 |
| 2019 | 1 | – | 1 |
| 2018 | – | 2 | 2 |
| 2015 | 1 | – | 1 |
