Cambridge O Level Chemistry (5070) Paper 12, October/November 2025. Read the question paper free and work through it with an AI tutor that explains every question step by step.
| Exam board | Cambridge International Education |
|---|---|
| Qualification | Cambridge O Level |
| Subject | Chemistry |
| Syllabus code | 5070 |
| Paper | Paper 12 (5070/12) |
| Exam series | October/November 2025 · all 2025 papers |
| Questions | 40 |
| AI explanations | Available for every question |
The questions in this paper cover these Chemistry syllabus chapters:
| Topic | Questions |
|---|---|
| Chapter 1: States of matter | 4 |
| Chapter 2: Atoms, elements and compounds | 9 |
| Chapter 3: Stoichiometry | 3 |
| Chapter 5: Chemical energetics | 1 |
| Chapter 6: Chemical reactions | 10 |
| Chapter 7: Acids, bases and salts | 6 |
| Chapter 8: The Periodic Table | 4 |
| Chapter 9: Metals | 4 |
| Chapter 10: Chemistry of the environment | 3 |
| Chapter 11: Organic chemistry | 7 |
| Chapter 12: Experimental techniques and chemical analysis | 11 |
Every question in 5070 Chemistry Paper 12 — Oct/Nov 2025 and the syllabus topic it tests. Ask the AI tutor about any of them by number, for example "Question 1".
| Question | Topic |
|---|---|
| Question 1 | Chapter 10: Chemistry of the environment; Chapter 12: Experimental techniques and chemical analysis |
| Question 2 | Chapter 1: States of matter |
| Question 3 | Chapter 2: Atoms, elements and compounds; Chapter 8: The Periodic Table |
| Question 4 | Chapter 2: Atoms, elements and compounds |
| Question 5 | Chapter 2: Atoms, elements and compounds |
| Question 6 | Chapter 1: States of matter; Chapter 2: Atoms, elements and compounds |
| Question 7 | Chapter 3: Stoichiometry; Chapter 6: Chemical reactions; Chapter 7: Acids, bases and salts |
| Question 8 | Chapter 2: Atoms, elements and compounds; Chapter 11: Organic chemistry |
| Question 9 | Chapter 3: Stoichiometry |
| Question 10 | Chapter 7: Acids, bases and salts; Chapter 12: Experimental techniques and chemical analysis |
| Question 11 | Chapter 12: Experimental techniques and chemical analysis |
| Question 12 | Chapter 2: Atoms, elements and compounds; Chapter 6: Chemical reactions |
| Question 13 | Chapter 3: Stoichiometry; Chapter 6: Chemical reactions |
| Question 14 | Chapter 1: States of matter; Chapter 6: Chemical reactions |
| Question 15 | Chapter 6: Chemical reactions |
| Question 16 | Chapter 12: Experimental techniques and chemical analysis |
| Question 17 | Chapter 2: Atoms, elements and compounds; Chapter 6: Chemical reactions |
| Question 18 | Chapter 6: Chemical reactions; Chapter 12: Experimental techniques and chemical analysis |
| Question 19 | Chapter 7: Acids, bases and salts; Chapter 12: Experimental techniques and chemical analysis |
| Question 20 | Chapter 6: Chemical reactions; Chapter 7: Acids, bases and salts |
| Question 21 | Chapter 2: Atoms, elements and compounds; Chapter 8: The Periodic Table |
| Question 22 | Chapter 8: The Periodic Table |
| Question 23 | Chapter 8: The Periodic Table |
| Question 24 | Chapter 1: States of matter; Chapter 9: Metals; Chapter 12: Experimental techniques and chemical analysis |
| Question 25 | Chapter 9: Metals |
| Question 26 | Chapter 9: Metals |
| Question 27 | Chapter 2: Atoms, elements and compounds; Chapter 6: Chemical reactions |
| Question 28 | Chapter 10: Chemistry of the environment |
| Question 29 | Chapter 10: Chemistry of the environment |
| Question 30 | Chapter 11: Organic chemistry |
| Question 31 | Chapter 11: Organic chemistry |
| Question 32 | Chapter 11: Organic chemistry |
| Question 33 | Chapter 5: Chemical energetics; Chapter 11: Organic chemistry |
| Question 34 | Chapter 11: Organic chemistry |
| Question 35 | Chapter 6: Chemical reactions; Chapter 7: Acids, bases and salts |
| Question 36 | Chapter 11: Organic chemistry |
| Question 37 | Chapter 12: Experimental techniques and chemical analysis |
| Question 38 | Chapter 12: Experimental techniques and chemical analysis |
| Question 39 | Chapter 12: Experimental techniques and chemical analysis |
| Question 40 | Chapter 7: Acids, bases and salts; Chapter 9: Metals; Chapter 12: Experimental techniques and chemical analysis |
This paper tests 11 syllabus topics: States of matter (4 questions), Atoms, elements and compounds (9 questions), Stoichiometry (3 questions), Chemical energetics (1 question), Chemical reactions (10 questions), Acids, bases and salts (6 questions), The Periodic Table (4 questions), Metals (4 questions), Chemistry of the environment (3 questions), Organic chemistry (7 questions), Experimental techniques and chemical analysis (11 questions).
Yes. Open the paper on Aixampapers and ask the AI tutor about any question: it explains each one step by step, written to what Cambridge examiners give marks for.
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