Chemistry 9701 · 14 Hydrocarbons
14.2 Alkenes
Describe alkene production, electrophilic addition reactions, oxidation, polymerisation, bromine test, and Markovnikov's rule via carbocation stability.
- Questions
- 235
- Years
- 2015–2026
- Multiple choice
- 175
- Written answer
- 60
- Average marks
- 4.4
Where this subtopic appears
- Paper 1variants 11, 12, 13, 14175
- Paper 2variants 21, 22, 23, 2447
- Paper 4variants 41, 42, 4312
- Paper 3variants 331
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | – | 13 | – | 13 |
| 2023 | 6 | 10 | 11 | 27 |
| 2022 | 5 | 12 | 5 | 22 |
| 2021 | 3 | 11 | 13 | 27 |
| 2020 | 3 | 16 | 4 | 23 |
| 2019 | 4 | 10 | 10 | 24 |
| 2018 | 2 | 12 | 13 | 27 |
| 2017 | 5 | 13 | 11 | 29 |
| 2016 | 2 | 9 | 8 | 19 |
| 2015 | – | 15 | 9 | 24 |
