Cambridge IGCSE · 0620
Cambridge IGCSE Chemistry 0620 topical past papers
Cambridge IGCSE Chemistry (0620) is a two-year course usually taken at around age 14 to 16 and a common starting point for A Level chemistry. Its topics run from states of matter, atoms, elements and compounds, and stoichiometry, through electrochemistry, energetics, chemical reactions, and acids, bases and salts, to the Periodic Table, metals, the chemistry of the environment, organic chemistry, and experimental techniques and chemical analysis. Every candidate studies the Core content; the Supplement content, studied on the Extended route, adds work such as further mole calculations, ionic half-equations at electrodes and condensation polymers.
- Questions
- 8,769
- Past papers
- 469
- Years
- 2009–2026
- With mark scheme
- 99%
Anyone can browse these pages. Opening the questions and their mark schemes takes a free Momentum account.
Chemistry 0620 chapters
The chapters the bank files this subject’s questions under, in syllabus order. Each has a page of its own.
| Chapter | Questions | Years |
|---|---|---|
| States of Matter | 335 | 2009–2026 |
| Separating Substances | 452 | 2009–2026 |
| Atoms and Elements | 543 | 2009–2026 |
| Atoms Combining | 683 | 2009–2026 |
| Reacting Masses and Chemical Equations | 353 | 2009–2026 |
| Using Moles | 112 | 2012–2026 |
| Redox Reactions | 222 | 2009–2026 |
| Electricity and Chemical Changes | 471 | 2009–2026 |
| Energy Changes and Reversible Reactions | 651 | 2009–2026 |
| The Speed of a Reaction | 476 | 2009–2026 |
| Acids and Bases | 879 | 2009–2026 |
| The Periodic Table | 846 | 2009–2026 |
| The Behavior of Metals | 489 | 2009–2026 |
| Making Use of Metals | 529 | 2009–2026 |
| Air and Water | 612 | 2009–2026 |
| Some Non-metals and Their Compounds | 513 | 2009–2026 |
| Organic Chemistry | 1,092 | 2009–2026 |
| Polymers | 296 | 2010–2026 |
| In the Lab (chemical Test& Salt Analysis) | 489 | 2009–2026 |
Revising Chemistry 0620 by topic
Core candidates sit Paper 1, a multiple-choice paper, and Paper 3, a theory paper, both on the Core content; Extended candidates sit Paper 2 and Paper 4, which cover the Core and Supplement content together. All candidates also take either Paper 5, a Practical Test, or Paper 6, Alternative to Practical, a written paper on laboratory work, and notes for use in qualitative analysis are provided in both. The current syllabus covers examinations in 2026, 2027 and 2028.
- Momentum's chapters use their own names rather than the syllabus headings: stoichiometry is spread across Reacting masses and chemical equations and Using moles, for example, and chemical tests sit under In the lab. Compare the chapter list with the syllabus once so you know where each topic is filed.
- Papers were numbered differently under older syllabuses, and the earliest Paper 3 questions come from what was then the Extended theory paper. Judge the level of an older Paper 3 question from the question itself rather than from its paper number.
- Tests for ions and gases, chromatography, titration and separation methods are examined in detail in Paper 6. Practise them with the qualitative analysis notes beside you, as in the exam, and learn the exact observations the mark scheme accepts, such as the colour of a precipitate and whether it dissolves in excess.
- Multiple-choice questions on stoichiometry and electrolysis often test one step of a calculation or one product at an electrode, while the theory papers ask for the whole method and, on the Extended route, the half-equations. Practise each of these topics in both formats so that you can show full working when it is asked for.
- Organic chemistry questions on the theory papers often combine a homologous series, its reactions and a polymer in one question. Practise them by drawing structures and repeat units and stating reaction conditions in full, rather than by recognising answers.
Practising in Momentum
- Every question in a chapter as one list, from every paper and year in the bank, newest first or shuffled.
- Each question turns over to its own part of the mark scheme, where the board published one.
- Narrow by paper, year, session, zone and marks, and star the questions worth keeping.
- Pick chapters, a number of questions and a time, and the exam builder draws a mock to sit and mark.
Past-paper questions and mark schemes are the copyright of Cambridge International. Momentum shows them to signed-in learners for revision and does not publish them on these pages.
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