Chemistry 5070 · 11 Organic chemistry
11.4 Alkanes
Describe alkanes as saturated hydrocarbons, and explain their combustion and photochemical substitution reactions with chlorine.
- Questions
- 99
- Years
- 2004–2026
- Multiple choice
- 74
- Written answer
- 25
- Average marks
- 2.8
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Where this subtopic appears
- Paper 1variants 01, 11, 1271
- Paper 2variants 02, 21, 2220
- Paper 4variants 04, 41, 428
Questions by year
| Year | May/June | Oct/Nov | Total |
|---|---|---|---|
| 2026 | 4 | – | 4 |
| 2023 | 4 | 4 | 8 |
| 2022 | 3 | 4 | 7 |
| 2021 | 3 | 3 | 6 |
| 2020 | 4 | 4 | 8 |
| 2019 | 7 | 3 | 10 |
| 2018 | 4 | 3 | 7 |
| 2017 | 6 | 5 | 11 |
| 2016 | 4 | 3 | 7 |
| 2015 | 4 | 2 | 6 |
| 2014 | 1 | – | 1 |
| 2013 | – | 1 | 1 |
| 2012 | 1 | 1 | 2 |
| 2009 | 1 | 2 | 3 |
| 2008 | 2 | 1 | 3 |
| 2007 | 2 | 4 | 6 |
| 2006 | 1 | – | 1 |
| 2005 | 2 | 4 | 6 |
| 2004 | – | 2 | 2 |