Chemistry 5070 · 10 Chemistry of the environment
10.2 Fertilisers
State the use of ammonium salts and nitrates as fertilisers, and explain how NPK fertilisers improve plant growth.
- Questions
- 50
- Years
- 2004–2026
- Multiple choice
- 36
- Written answer
- 14
- Average marks
- 3.1
Practise chemistry of the environment questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 01, 11, 1236
- Paper 2variants 02, 21, 2214
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 1 | – | 1 |
| 2023 | 2 | 1 | 3 |
| 2022 | 2 | 3 | 5 |
| 2021 | – | 2 | 2 |
| 2020 | 2 | 3 | 5 |
| 2019 | 2 | 1 | 3 |
| 2018 | 2 | 3 | 5 |
| 2017 | 2 | 2 | 4 |
| 2016 | 4 | 1 | 5 |
| 2015 | – | 1 | 1 |
| 2009 | 3 | – | 3 |
| 2008 | – | 2 | 2 |
| 2007 | 1 | 2 | 3 |
| 2006 | 2 | 1 | 3 |
| 2005 | 2 | 2 | 4 |
| 2004 | – | 1 | 1 |
