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QCE Chemistry past exams 2020–2025, by year and topic
The official QCAA exams, marking guides and examiner reports we index, organised by topic and subtopic and labelled with the study design it was written under. Open the official paper, work the question in your own workspace, or bring a tutor into it live.
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Papers, marking guides and examiner reports open on the official QCAA website — they stay official and up to date. Question descriptions below are our own; we never republish exam content. Prefer to be walked through it? See the tutor directory →
Not sure what a topic below is actually meant to cover? Read the syllabus for Chemistry, area by area →
ATARMAxxing indexes 20 official QCAA Chemistry papers from 2020 to 2025, across 8 topics. Every paper opens on the QCAA website.
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The hub has an original model-exam question with its worked answer and a sample revision note, free to preview. The official papers below remain free on the exam authority's website.
Preview the worked question →QCE Chemistry exams by year: official papers & marking guidance
Past exams indexed: 2025, 2024, 2023, 2022, 2021, 2020. Open the official QCAA papers, with marking guidance where available.
20 official papers across 6 years (2020–2025), 6 with marking guidance, published by QCAA. These span more than one study design; the most recent is Chemistry 2025 syllabus (v1.0–v1.3). Earlier papers may cover material that has since changed.
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The rest of the syllabus
Question-level mapping for these areas is still being verified. Every official paper covering them is in the year table above.
- Unit 3 Topic 1: Chemical equilibrium systems — Chemical equilibrium (dynamic equilibrium, reversible reactions) · Factors that affect equilibrium (Le Chatelier's principle) · Equilibrium constants (Kc expressions and calculations) · Properties of acids and bases · pH scale and calculations · Bronsted-Lowry acid-base model · Acid and base dissociation constants (Ka, Kb) · Acid-base indicators and buffers · Volumetric analysis (titration)
- Unit 3 Topic 2: Oxidation and reduction — Redox reactions and half-equations · Electrochemical cells · Galvanic (voltaic) cells · Standard electrode potentials and the electrochemical series · Electrolytic cells and electrolysis
- Unit 4 Topic 1: Properties and structure of organic materials — Structure and nomenclature of organic compounds · Physical properties and trends across homologous series · Organic reactions and reaction pathways · Organic materials: structure-function relationships · Analytical techniques (e.g. IR, mass spectrometry, NMR)
- Unit 4 Topic 2: Chemical synthesis and design — Chemical synthesis and reaction pathways · Green chemistry principles · Macromolecules: polymers, proteins and carbohydrates · Molecular manufacturing
- Unit 1 Topic 1: Properties and structure of atoms — Atomic structure and notation · Periodic trends · Characterising matter
- Unit 1 Topic 2: Properties and structure of materials — Metallic bonding · Ionic bonding · Covalent bonding · Electron dot diagrams and Lewis structures
- Unit 1 Topic 3: Chemical reactions - reactants, products and energy change — The mole concept, percentage composition and empirical formulas · Stoichiometry · Exothermic and endothermic reactions · Fossil fuels and biofuels
- Unit 2 Topics: Molecular interactions and reactions — Intermolecular forces · Gases and gas laws · Aqueous solutions and solubility · Acidity (introductory) · Rates of reaction
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