Chemistry 9701 · 18 Carboxylic acids and derivatives
18.2 Esters
Describe ester preparation via condensation and hydrolysis under acidic or alkaline conditions.
- Questions
- 110
- Years
- 2015–2026
- Multiple choice
- 100
- Written answer
- 10
- Average marks
- 1.8
Practise carboxylic acids and derivatives questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 11, 12, 13, 14100
- Paper 2variants 21, 22, 236
- Paper 4variants 41, 42, 434
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | – | 5 | – | 5 |
| 2023 | 1 | 5 | 4 | 10 |
| 2022 | 1 | 5 | 6 | 12 |
| 2021 | 2 | 6 | 6 | 14 |
| 2020 | 1 | 6 | 5 | 12 |
| 2019 | – | 5 | 4 | 9 |
| 2018 | 2 | 6 | 3 | 11 |
| 2017 | 1 | 4 | 4 | 9 |
| 2016 | 3 | 9 | 8 | 20 |
| 2015 | – | 3 | 5 | 8 |
