OCR A-Level Chemistry A exam papers and weighting (H432)
Guide overview All 17 sections Sample questions Papers and weighting Look inside Questions and answers
What each OCR A-Level Chemistry A paper assesses
OCR A-Level Chemistry A (specification H432) is taught in six modules, from practical skills and the foundations of chemistry through physical, inorganic and organic chemistry, and is assessed by three written papers and a separately reported practical endorsement. Papers 1 and 2 each take a share of the content and Paper 3 is synoptic, drawing on any section together with practical technique. Twelve practical activity groups run through the course and are examined alongside the theory.
| Paper | Covers | Length | Marks | Weighting |
|---|---|---|---|---|
|
Component 01 Periodic Table, Elements and Physical Chemistry |
Modules 1, 2, 3 and 5: the foundations, the periodic table and energy, and physical chemistry and transition elements Multiple-choice, structured and extended-response questions Includes questions on the practical activity groups and on mathematics at Level 2 or above |
2 hours 15 minutes | 100 marks | 37% |
|
Component 02 Synthesis and Analytical Techniques |
Modules 1, 2, 4 and 6: the foundations, core and advanced organic chemistry, and the analytical techniques Multiple-choice, structured and extended-response questions Includes questions on the practical activity groups and on mathematics at Level 2 or above |
2 hours 15 minutes | 100 marks | 37% |
|
Component 03 Unified Chemistry |
Any content from the specification, drawn together synoptically Questions on experimental method, on planning and on the analysis of data Includes extended-response questions set in unfamiliar contexts |
1 hour 30 minutes | 70 marks | 26% |
|
Component 04 Practical Endorsement in Chemistry |
Reported separately from the A-Level grade as a pass or not classified Assessed by the teacher across the twelve practical activity groups |
Assessed throughout the course | No marks | Reported separately |
Every section, and where it is examined
| Section | Module | Examined on | Questions |
|---|---|---|---|
| Foundations in Chemistry | Module 2: Foundations in chemistry | Component 01, Component 02, Component 03 | 284 |
| Bonding and Structure | Module 2: Foundations in chemistry | Component 01, Component 02, Component 03 | 117 |
| Periodic Table and Energy | Module 3: Periodic table and energy | Component 01, Component 03 | 177 |
| Enthalpy Changes | Module 3: Periodic table and energy | Component 01, Component 03 | 89 |
| Chemical Equilibrium | Module 3: Periodic table and energy | Component 01, Component 03 | 36 |
| Basic Concepts of Organic Chemistry | Module 4: Core organic chemistry | Component 02, Component 03 | 82 |
| Core Organic Chemistry | Module 4: Core organic chemistry | Component 02, Component 03 | 116 |
| Alkenes | Module 4: Core organic chemistry | Component 02, Component 03 | 86 |
| Organic Synthesis | Module 4: Core organic chemistry | Component 02, Component 03 | 52 |
| How Fast? | Module 5: Physical chemistry and transition elements | Component 01, Component 03 | 107 |
| Physical Chemistry and Transition Elements | Module 5: Physical chemistry and transition elements | Component 01, Component 03 | 101 |
| Acids, Bases and Buffers | Module 5: Physical chemistry and transition elements | Component 01, Component 03 | 120 |
| Redox and Electrode Potentials | Module 5: Physical chemistry and transition elements | Component 01, Component 03 | 78 |
| Transition Elements | Module 5: Physical chemistry and transition elements | Component 01, Component 03 | 131 |
| Aromatic Compounds | Module 6: Organic chemistry and analysis | Component 02, Component 03 | 65 |
| Organic Chemistry and Analysis | Module 6: Organic chemistry and analysis | Component 02, Component 03 | 184 |
| Spectroscopy | Module 6: Organic chemistry and analysis | Component 02, Component 03 | 88 |
Assessment details from the OCR Level 3 Advanced GCE in Chemistry A, specification H432. OCR specification.
Every paper is covered, because the guide runs the whole specification.Get the guide, £8
OCR A-Level Chemistry A Active Recall Guide
1,913 questions across every paper on the specification.