Chemistry 9701 · 12 Nitrogen and sulfur
12.1 Nitrogen and sulfur
Explain nitrogen's unreactivity, ammonia's basicity, ammonium ion formation, and the environmental roles of nitrogen oxides.
- Questions
- 140
- Years
- 2015–2026
- Multiple choice
- 119
- Written answer
- 21
- Average marks
- 3.1
Practise nitrogen and sulfur questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 11, 12, 13, 14119
- Paper 2variants 21, 22, 2318
- Paper 3variants 31, 33, 353
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | – | 9 | – | 9 |
| 2024 | – | – | 1 | 1 |
| 2023 | 2 | 6 | 3 | 11 |
| 2022 | 1 | 5 | 6 | 12 |
| 2021 | 1 | 9 | 5 | 15 |
| 2020 | 2 | 6 | 10 | 18 |
| 2019 | 3 | 6 | 8 | 17 |
| 2018 | 3 | 5 | 7 | 15 |
| 2017 | 1 | 12 | 3 | 16 |
| 2016 | 2 | 5 | 6 | 13 |
| 2015 | – | 6 | 7 | 13 |
