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Chemistry SL Exam Practice Questions

Topic-based IB Chemistry SL exam questions with worked answers, designed to build understanding, strengthen problem-solving skills, and support confident exam preparation.

21 sets MCQ + Structured 6 topics P1 + P2
Jump to: 📘 Models of the Particulate Nature of Matter 📗 Models of Bonding & Structure 📐 Classification of Matter 📊 What Drives Chemical Reactions? ∫ How Much, How Fast & How Far? 🛠️ Mechanisms of Chemical Change
1

Topic 1

Models of the Particulate Nature of Matter

Particles, atoms, electrons, moles and gases

Particles, Substances & Physical Change

Elements, compounds, mixtures, separation techniques, changes of state, and particle kinetic energy.

Atomic Structure

The nuclear model of the atom, protons, neutrons, electrons, and isotopes.

Electron Arrangement

The electromagnetic spectrum, emission spectra, energy levels, sublevels, orbitals, and electron configurations.

The Mole & Quantitative Chemistry

The mole, molar mass, empirical formula, concentration, Avogadro’s law, and particle calculations.

Gases

Ideal gases, molar gas volume, ideal gas equation, and real gas behaviour.

2

Topic 2

Models of Bonding & Structure

Ionic, covalent and metallic bonding and materials

Ionic Bonding

Ion formation, binary ionic compounds, and ionic lattice structures.

Covalent Bonding

Covalent bonds, Lewis structures, multiple bonds, coordinate bonding, molecular shapes, bond polarity, molecular polarity, giant covalent structures, intermolecular forces, covalent properties, and chromatography.

Metallic Bonding

Metallic structure, properties of metals, uses of metals, and key features of s-block and p-block elements.

Materials & Structure

Bonding models, structure-property relationships, alloys, polymers, and addition polymerisation.

3

Topic 3

Classification of Matter

Periodic trends and organic families

Periodic Trends & Element Classification

The periodic table, electron configuration patterns, periodic trends, reactions of Group 1 and Group 17 elements, metallic and non-metallic oxides, and oxidation states.

Organic Families & Functional Groups

Organic formulas, functional groups, homologous series, IUPAC naming, and structural isomerism.

4

Topic 4

What Drives Chemical Reactions?

Enthalpy, energy cycles and fuels

Enthalpy Change

Heat and temperature, exothermic and endothermic reactions, energy profiles, standard enthalpy changes, and calorimetry.

Energy Cycles

Bond enthalpy, Hess’s law, and enthalpy cycle calculations.

Fuels & Energy Sources

Combustion, incomplete combustion, carbon dioxide from fuels, greenhouse links, biofuels, and fuel cells.

5

Topic 5

How Much, How Fast & How Far?

Stoichiometry, rates and equilibrium

Amount of Chemical Change

Balanced equations, reacting masses, molar gas volume, concentration, limiting and excess reactants, percentage yield, and atom economy.

Reaction Rates

Rates of reaction, experimental rate measurement, collision theory, factors affecting rate, activation energy, catalysts, and Maxwell–Boltzmann distributions.

Chemical Equilibrium

Dynamic equilibrium, equilibrium law, equilibrium constants, and Le Chatelier’s principle.

6

Topic 6

Mechanisms of Chemical Change

Proton transfer, redox, radicals and organic pathways

Proton Transfer

Brønsted–Lowry acids and bases, conjugate pairs, amphiprotic species, pH, ion product of water, strong and weak acids, neutralisation, and pH curves.

Electron Transfer

Oxidation and reduction, half-equations, redox tendency, reactions of acids with metals, primary and secondary cells, electrolysis, oxidation of alcohols, and reduction reactions in organic chemistry.

Radical Reactions

Radicals, homolytic fission, and halogenation of alkanes.

Organic Reaction Pathways

Nucleophilic substitution, heterolytic fission, and electrophilic addition.

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