Edexcel A-Level Chemistry exam papers and weighting (9CH0)
Guide overview All 19 topics Sample questions Papers and weighting Look inside Questions and answers
What each Edexcel A-Level Chemistry paper assesses
Edexcel A-Level Chemistry (specification 9CH0) covers nineteen topics across inorganic, physical and organic chemistry, assessed by three written papers and a separately reported practical endorsement. Papers 1 and 2 each take a share of the content, with topics 2, 3 and 5 examined on both; Paper 3 is synoptic and can draw on any topic. Sixteen core practicals run through the course and are examined alongside the theory.
| Paper | Covers | Length | Marks | Weighting |
|---|---|---|---|---|
|
Paper 1 Advanced Inorganic and Physical Chemistry |
Topics 1 to 5, 8 and 10 to 15: atomic structure, bonding, redox, inorganic chemistry, amounts of substance, energetics, equilibria, acid-base chemistry and the transition metals Multiple-choice, short open, calculation and extended writing questions Includes questions on the core practicals and on mathematics at Level 2 or above |
1 hour 45 minutes | 90 marks | 30% |
|
Paper 2 Advanced Organic and Physical Chemistry |
Topics 2, 3, 5, 6, 7, 9 and 16 to 19: organic chemistry, the analytical techniques, kinetics, and the bonding and amounts of substance that underpin them Multiple-choice, short open, calculation and extended writing questions Includes questions on the core practicals and on mathematics at Level 2 or above |
1 hour 45 minutes | 90 marks | 30% |
|
Paper 3 General and Practical Principles in Chemistry |
Any topic on the specification, drawn together synoptically Questions on experimental method, on planning and on the analysis of data Short open, open-response, calculation and extended writing questions, including mathematics at Level 2 or above |
2 hours 30 minutes | 120 marks | 40% |
|
9CH0/04 Science Practical Endorsement |
Reported separately from the A-Level grade as a pass or not classified Teacher assessed against the common practical assessment criteria (CPAC) across a minimum of 12 practical activities; the competencies can also be demonstrated in any additional practical activity |
Assessed throughout the course | No marks | Reported separately |
Every topic, and where it is examined
| Topic | Examined on | Questions |
|---|---|---|
| Atomic Structure and the Periodic Table | Paper 1, Paper 3 | 68 |
| Bonding and Structure | Paper 1, Paper 2, Paper 3 | 69 |
| Redox I | Paper 1, Paper 2, Paper 3 | 35 |
| Inorganic Chemistry and the Periodic Table | Paper 1, Paper 3 | 168 |
| Formulae, Equations and Amounts of Substance | Paper 1, Paper 2, Paper 3 | 134 |
| Organic Chemistry I | Paper 2, Paper 3 | 202 |
| Modern Analytical Techniques I | Paper 2, Paper 3 | 45 |
| Energetics I | Paper 1, Paper 3 | 39 |
| Kinetics I | Paper 2, Paper 3 | 32 |
| Equilibrium I | Paper 1, Paper 3 | 24 |
| Equilibrium II | Paper 1, Paper 3 | 23 |
| Acid-Base Equilibria | Paper 1, Paper 3 | 73 |
| Energetics II | Paper 1, Paper 3 | 70 |
| Redox II | Paper 1, Paper 3 | 62 |
| Transition Metals | Paper 1, Paper 3 | 123 |
| Kinetics II | Paper 2, Paper 3 | 74 |
| Organic Chemistry II | Paper 2, Paper 3 | 113 |
| Organic Chemistry III | Paper 2, Paper 3 | 129 |
| Modern Analytical Techniques II | Paper 2, Paper 3 | 51 |
Assessment details from the Pearson Edexcel Level 3 Advanced GCE in Chemistry, specification 9CH0. Pearson Edexcel specification.
Every paper is covered, because the guide runs the whole specification.Get the guide, £8
Edexcel A-Level Chemistry Active Recall Guide
1,534 questions across every paper on the specification.