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Cambridge · O Level

Cambridge O Level Chemistry

Cambridge O Level Chemistry (5070). What it covers, how it is assessed, a link to the official syllabus, and the free study material Marlbridge publishes for it.

Syllabus
5070
Board
Cambridge
Qualification
O Level

At a glance

Qualification
Cambridge O Level Chemistry
Spec code
5070
Does Marlbridge teach it?
Yes — request a free trial class
Who teaches it?
Farhat ul Ain Sehgal · Nouman Ahmed
Are resources available?
Yes — 59 published
Is enrolment open?
Enquire to join — no online enrolment yet
Official syllabus
Cambridge syllabus
Topic checklist
Printable 5070 checklist
Where was this verified?
2026-08-25, official Cambridge specification
Free practice questions?
Yes — 203 self-check questions
Free 10-minute diagnostic?
Yes — Five topic areas of the syllabus

Compiled and maintained by the Marlbridge Academic Team, checked against the official Cambridge specification on 2026-08-25.

Spotted something wrong on this page? Report an error — see the corrections policy.

The qualification

Cambridge O Level Chemistry (5070)

Marlbridge's summary of the course

The Cambridge O Level Chemistry syllabus helps learners to understand the technological world in which they live, and take an informed interest in science and scientific developments.

The board's own description is on the official Cambridge syllabus page.

Current syllabus is Version 1, published September 2023, confirmed directly from the official syllabus PDF as valid for exams in 2026, 2027 and 2028 (June and November series). No significant changes affecting teaching since the prior version; textbooks endorsed for examination from 2023 remain suitable.

Specifications change between examination series. Always confirm the current syllabus and assessment structure on the Cambridge syllabus page for your examination year.

Assessment structure

Assessment components for Cambridge Chemistry 5070
Component Duration Marks Weighting Type
Paper 1: Multiple Choice 1h 40 30% Multiple choice
Paper 2: Theory 1h 45m 80 50% Written exam
Paper 3: Practical Test 1h 30m 40 20% * Practical
Paper 4: Alternative to Practical 1h 40 20% * Alternative to practical

* Candidates sit one of the components marked with an asterisk, not all of them.

Source: official Cambridge specification, verified 2026-08-27. Directly confirmed against the official PDF (Assessment overview, p.9): Paper 1 Multiple Choice 1h/40 marks/30%; Paper 2 Theory 1h45/80 marks/50%; all candidates also take one practical component, a choice of Paper 3 Practical Test (1h30/40 marks/20%) OR Paper 4 Alternative to Practical (1h/40 marks/20%), both externally assessed. Cambridge states only the examination-series window (2026-2028, June and November series), not a separate first-teaching date.

Assessment FAQs

How is Cambridge Chemistry (5070) assessed?

Cambridge Chemistry (5070) is assessed through: Paper 1 (Multiple Choice) — 1h, 40 marks, 30% of the qualification; Paper 2 (Theory) — 1h 45m, 80 marks, 50% of the qualification; one of Paper 3 (Practical Test) — 1h 30m, 40 marks, 20% of the qualification or Paper 4 (Alternative to Practical) — 1h, 40 marks, 20% of the qualification. Source: official Cambridge specification, verified 2026-08-27.

The subject

Chemistry teaching and study resources, organised by level and topic.

All Chemistry at Marlbridge

Syllabus topics

The 12 topics below are taken from the official Cambridge document for Cambridge O Level Chemistry (5070), for the 2026-2028 examination series, and follow that document's own headings. Where a syllabus lists its papers or components rather than content topics, those are shown instead. Subtopics are shown where Marlbridge has entered them from the document; a topic shown with few or no subtopics may have more in the official document.

A topic listed here is part of the syllabus. It does not mean Marlbridge has published material for it — topics with resources are marked. Marlbridge currently has resources for 12 of 12 topics.

  1. 1 States of matter

    3 Marlbridge resources

    Solids, liquids and gases · Diffusion

  2. 2 Atoms, elements and compounds

    5 Marlbridge resources

    Elements, compounds and mixtures · Atomic structure and the Periodic Table · Isotopes · Ion and ionic bonds · Simple molecules and covalent bonds · Giant covalent structures · Metallic bonding

  3. 3 Stoichiometry

    3 Marlbridge resources

    Formulae · Relative masses of atoms and molecules · The mole and the Avogadro constant

  4. 4 Electrochemistry

    3 Marlbridge resources

    Electrolysis · Hydrogen–oxygen fuel cells

  5. 5 Chemical energetics

    3 Marlbridge resources

    Exothermic and endothermic reactions

  6. 6 Chemical reactions

    9 Marlbridge resources

    Physical and chemical changes · Rate of reaction · Reversible reactions and equilibrium · Redox

  7. 7 Acids, bases and salts

    3 Marlbridge resources

    The characteristic properties of acids and bases · Oxides · Preparation of salts

  8. 8 The Periodic Table

    3 Marlbridge resources

    Arrangement of elements · Group I properties · Group VII properties · Transition elements · Noble gases

  9. 9 Metals

    6 Marlbridge resources

    Properties of metals · Uses of metals · Alloys and their properties · Reactivity series · Corrosion of metals · Extraction of metals

  10. 10 Chemistry of the environment

    3 Marlbridge resources

    Water · Fertilisers · Air quality and climate

  11. 11 Organic chemistry

    12 Marlbridge resources

    Formulae, functional groups and terminology · Naming organic compounds · Fuels · Alkanes · Alkenes · Alcohols · Carboxylic acids · Polymers

  12. 12 Experimental techniques and chemical analysis

    6 Marlbridge resources

    Experimental design · Acid–base titrations · Chromatography · Separation and purification · Identification of ions and gases

Source: Cambridge Assessment International Education — official syllabus PDF — 2026-2028 series. Verified 2026-08-17. Always check the current syllabus for your examination year.

Study resources

Revision material

Exam preparation

Chemistry at other qualifications

These are separate qualifications with different syllabuses and assessments — not different names for the same course. Check which one your school enters you for.

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