Cambridge O Level Chemistry (5070): examiner-style marking and a new paper for every student
Same four-paper structure as Physics: MCQ scored instantly, Theory and Alternative to Practical marked question by question with ecf and owtte applied the Cambridge way.
Syllabus for examination in 2026, 2027 and 2028 · June and November series · grades A*–E
Paper structure and what we mark
| Paper | Time | Marks | Weight | Questions |
|---|---|---|---|---|
| Paper 1 — Multiple Choice | 1 h | 40 | 30% | 40 four-option multiple-choice questions |
| Paper 2 — Theory | 1 h 45 min | 80 | 50% | Short-answer and structured questions, all compulsory |
| Paper 3 — Practical Test | 1 h 30 min | 40 | 20% | Practical exam (sat at the centre) — or Paper 4 |
| Paper 4 — Alternative to Practical | 1 h | 40 | 20% | Written paper on experimental skills — or Paper 3 |
Topics
- Experimental chemistry
- Atoms, elements and compounds
- Stoichiometry
- Electrochemistry
- Chemical energetics
- Organic chemistry
Questions teachers ask
- Is this official Cambridge marking?
- No. Cambridge International Education marks the real exam. This is examiner-style marking of mocks and homework for 5070, and you approve every mark before a student sees it.
- Do you reproduce past-paper questions?
- No. Every 5070 paper here is original and written to the syllabus for examination in 2026, 2027 and 2028, in the same structure as the real papers shown above.
- Which papers are marked?
- Paper 2, Paper 4 are marked question by question; Paper 1 are scored instantly. Practical exams sat at the centre are not marked here.
- How is the next paper chosen?
- From the marks a student lost: the concepts behind them are ranked by marks dropped, and the new paper weights those topics. It is the same syllabus and structure, with new questions.
- When are the exams?
- June and November series. Grades A*–E.
Other Cambridge O Level courses
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- Cambridge O Level Biology (5090)
- Cambridge O Level Mathematics D (4024)
- Cambridge O Level Additional Mathematics (4037)
- Cambridge O Level Pakistan Studies (2059)
- Cambridge O Level English Language (1123)
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- Cambridge O Level Business Studies (7115)
- Cambridge O Level Accounting (7707)
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- Cambridge O Level Sociology (2251)
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