Cambridge IGCSE · 0620
Chemistry topical past papers
Every Cambridge IGCSE Chemistry (0620) past-paper question from 2010–2025, sorted into 12 syllabus chapters and their subtopics, with the official mark schemes.
- Questions
- 11,298
- Chapters
- 12
- Years
- 2010–2025
Syllabus chapters
-
States of matter
575 questions
- Solids, liquids and gases
- Diffusion
-
Atoms, elements and compounds
1,345 questions
- 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
-
Stoichiometry
614 questions
- Formulae
- Relative masses of atoms and molecules
- The mole and the Avogadro constant
-
Electrochemistry
602 questions
- Electrolysis
- Hydrogen–oxygen fuel cells
-
Chemical energetics
327 questions
- Exothermic and endothermic reactions
-
Chemical reactions
720 questions
- Physical and chemical changes
- Rate of reaction
- Reversible reactions and equilibrium
- Redox
-
Acids, bases and salts
2,037 questions
- The characteristic properties of acids and bases
- Oxides
- Preparation of salts
-
The Periodic Table
724 questions
- Arrangement of elements
- Group I properties
- Group VII properties
- Transition elements
- Noble gases
-
Metals
1,010 questions
- Properties of metals
- Uses of metals
- Alloys and their properties
- Reactivity series
- Corrosion of metals
- Extraction of metals
-
Chemistry of the environment
1,338 questions
- Water
- Fertilisers
- Air quality and climate
-
Organic chemistry
1,320 questions
- Formulae, functional groups and terminology
- Naming organic compounds
- Fuels
- Alkanes
- Alkenes
- Alcohols
- Carboxylic acids
- Polymers
-
Experimental techniques and chemical analysis
686 questions
- Experimental design
- Acid–base titrations
- Chromatography
- Separation and purification
- Identification of ions and gases