Opening 16 November · Open to every IGCSE student
IGCSE Chemistry (0620) Mock Exam
Full-syllabus papers, written for the February/March 2027 sitting.
The Chemistry paper opens on 16 November 2026. Reserve your seat now and we will email you the moment it goes live — then come back and sit it.
Papers open in
The IGCSE Mock Exams papers open on 16 November 2026.
40 questions · 45 minutes · Extended tier
Built to Cambridge Paper 2 (Extended). Timed, no pause, one sitting. Your first
attempt is the ranked one; every re-sit draws a fresh paper.
A Learning Platform plan is required to sit a Mock.
Free to read: the format, all 49 syllabus topics and the sample questions below.
What topics does the IGCSE Chemistry mock exam cover?
All of them. Questions are sampled from the entire Cambridge IGCSE Chemistry 0620 syllabus — 12 sections and 49 topics — rather than a selected list. Every topic below can appear.
1. States of matter
- Solids, liquids and gases
- Diffusion
2. Atoms, elements and compounds
- Elements, compounds and mixtures
- Atomic structure and the Periodic Table
- Isotopes
- Ions and ionic bonds
- Simple molecules and covalent bonds
- Giant covalent structures
- Metallic bonding
3. Stoichiometry
- Formulae
- Relative masses of atoms and molecules
- The mole and the Avogadro constant
4. Electrochemistry
- Electrolysis
- Hydrogen–oxygen fuel cells
5. Chemical energetics
- Exothermic and endothermic reactions
6. Chemical reactions
- Physical and chemical changes
- Rate of reaction
- Reversible reactions and equilibrium
- Redox
7. Acids, bases and salts
- The characteristic properties of acids and bases
- Oxides
- Preparation of salts
8. The Periodic Table
- Arrangement of elements
- Group I properties
- Group VII properties
- Transition elements
- Noble gases
9. Metals
- Properties of metals
- Uses of metals
- Alloys and their properties
- Reactivity series
- Corrosion of metals
- Extraction of metals
10. Chemistry of the environment
- Water
- Fertilisers
- Air quality and climate
11. Organic chemistry
- Formulae, functional groups and terminology
- Naming organic compounds
- Fuels
- Alkanes
- Alkenes
- Alcohols
- Carboxylic acids
- Polymers
12. Experimental techniques and chemical analysis
- Experimental design
- Acid–base titrations
- Chromatography
- Separation and purification
- Identification of ions and gases
Topic names follow the published Cambridge IGCSE Chemistry 0620 syllabus.
What you get when you submit
Your score
Out of 40, the moment you submit, with no waiting for marking.
An indicative grade band
Based on how everyone else who sat this paper scored. Not a Cambridge grade boundary.
A topic-by-topic breakdown
Which of the 49 Chemistry topics cost you marks, so you know what to revise next.
Worked solutions
Shown on submit for every question, so you can see where the reasoning went wrong.
Grade bands are indicative and come from the score distribution of everyone who has sat the paper, recalculated monthly. They are not Cambridge grade boundaries. Your percentile is the share of first ranked attempts in that subject scoring lower than you. It appears once 50 students have sat the paper.
What do the questions look like?
3 sample Chemistry questions, in the format you will meet them on the paper. Pick an answer to see the worked solution — the same way the real paper shows them the moment you submit.
- 1 2. Atoms, elements and compounds
Which statement about the bonding in magnesium oxide is correct?
Answer B. Magnesium is a metal in Group II and oxygen a non-metal in Group VI, so the bonding is ionic: magnesium loses its two outer electrons to form Mg²⁺ and oxygen gains them to form O²⁻. The last option is the frequent slip — an ionic compound conducts only when molten or in solution, because only then are the ions free to move. - 2 3. Stoichiometry
What is the mass of 0.5 mol of calcium carbonate, CaCO₃? (Aᵣ: Ca = 40, C = 12, O = 16)
Answer B. Mᵣ(CaCO₃) = 40 + 12 + (3 × 16) = 100. Mass = moles × Mᵣ = 0.5 × 100 = 50 g. The 100 g option is what you get by reporting the molar mass and forgetting to multiply by the 0.5; the 68 g option comes from using one oxygen instead of three. - 3 6. Chemical reactions
Raising the temperature increases the rate of a chemical reaction. Why?
Answer B. Heating gives particles more kinetic energy, so collisions are both more frequent and more energetic, and a larger fraction of them exceed the activation energy. The first option is the classic confusion: lowering activation energy is what a catalyst does, not what heat does.
Every question is original and written against a specific objective in the Cambridge IGCSE Chemistry 0620 syllabus. They are not past-paper questions.
What a plan includes, and what is open to everyone
The gate is listed here, before you start. Nothing below is discovered on the result screen.
| Learning Platform plan | Without a plan | |
|---|---|---|
| Sit the Mock (40 questions, timed) | Yes, as often as you like. Your first attempt is the ranked one. | — |
| Your score and an indicative grade band | The moment you submit. | — |
| Worked solutions on every question | Shown on submit. | — |
| Topic-by-topic breakdown and the full question-by-question report | Included. | — |
| Your percentile against everyone else sitting it | On your ranked attempt, once 50 students have sat that subject. | — |
| The paper format, the full syllabus scope and the sample questions | Yes. | Yes — everything on these pages, no account needed. |
| Round 2 theory papers | A paid add-on. | — |
A Learning Platform plan is required to sit a Mock. There is no free paper in this section — what is free is everything on these pages: the format, the full syllabus scope and the sample questions. Tutopiya's revision tools, lesson notes and past-paper resources stay free and need no account.
Frequently asked questions
What does the IGCSE Chemistry mock exam cover? +
The whole Cambridge IGCSE Chemistry 0620 syllabus — all 12 sections and 49 topics, listed in full on this page. Questions are drawn from across the syllabus rather than a selected list, which is why these papers are written for the February/March 2027 sitting.
How long is the Chemistry paper? +
40 questions in 45 minutes, matching Cambridge Paper 2 (Extended). It is timed, cannot be paused, and is sat in one go.
Is the Chemistry paper Core or Extended? +
Extended. There is no Core paper — the questions are written to the Extended content of the 0620 syllabus and built to Paper 2 (Extended).
How much does the IGCSE Chemistry mock exam cost? +
Sitting it needs a Tutopiya Learning Platform plan — there is no free Chemistry paper in this section, and we would rather say so here than after you have answered 40 questions. The plan covers unlimited re-sits, worked solutions, your indicative grade band, the topic-by-topic breakdown, the full question-by-question report and your percentile. Everything on this page — the format, all 49 syllabus topics and the sample questions — is free to read with no account.
Are these real Cambridge Chemistry past papers? +
No. They are original exam-style questions written by Tutopiya's subject specialists against the published Cambridge IGCSE Chemistry 0620 syllabus. They are not past papers, and Tutopiya is not affiliated with or endorsed by Cambridge Assessment International Education.
I am sitting Chemistry in May/June 2027. Can I use this? +
You can, but these papers sample the whole syllabus, so you will meet topics you have not been taught yet and your score will understate where you stand. A May/June edition is coming. In the meantime the sample questions on this page show the question style for nothing.
Revise Chemistry 0620 before you sit it
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Find out where you stand in Chemistry
40 questions, 45 minutes on the clock, and it tells you more than another evening of re-reading.
A Learning Platform plan is required to sit a Mock.
IGCSE Mock Exams papers are original questions written to the published Cambridge IGCSE syllabus. They are not past papers and are not affiliated with, endorsed by or approved by Cambridge Assessment International Education. Mock results are for practice only and do not predict or guarantee performance in official examinations.