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Chemistry notes for O-Level and SEC G3

Choose a chapter or download the full set. These notes follow the 2027 K324 syllabus.

Download the complete notes Check the official syllabus

Last updated: 2026-07-17

K324: 2027 SEC G3 syllabus
12: topics
6092: O-Level reference code

Choose the syllabus for your exam year

Sitting the exam in 2027? Use K324. Sitting in 2026? Keep using the current 6092 syllabus and your school materials.

K324 is the controlling source for the 2027 Pure Chemistry track. Use the practical hub for laboratory preparation and recheck the official assessment details before an examination cycle.

Pure or Combined? Pure and Combined Chemistry share the same 12 top-level labels, but the outcomes are not identical. Pure K324 includes electrolysis outcomes that the reviewed Combined component does not.

All topics

Matter: Structures and Properties

Experimental Chemistry

Choose apparatus and separation methods, record observations precisely, and plan fair, safe measurements.

The Particulate Nature of Matter

Use particle and atomic models to explain states, diffusion, elements, compounds, mixtures, and electronic structure.

Chemical Bonding and Structure

Connect bonding and structure to formulae, diagrams, physical properties, and expected conductivity.

Chemical Reactions

Chemical Calculations

Move between formulae, equations, moles, masses, solutions, gases, and yields with units and ratios visible.

Acid-Base Chemistry

Distinguish acids, bases, alkalis, pH, neutralisation, and salt preparation routes from the substances given.

Qualitative Analysis

Select a test, state the reagent and condition, record the observation, and make only the supported inference.

Redox Chemistry

Track electron transfer and oxidation states. Pure K324 includes electrolysis outcomes that Combined Chemistry does not.

Patterns in the Periodic Table

Use group and period patterns to predict properties, reactions, and trends without treating every trend as absolute.

Chemical Energetics

Use energy-change ideas, bond-energy reasoning, and reaction profiles with system and sign conventions stated.

Rate of Reactions

Link collision reasoning, variables, graphs, experimental design, and catalyst effects to measured rate.

Chemistry in a Sustainable World

Organic Chemistry

Recognise homologous series, structures, reactions, polymers, and property trends within the current syllabus scope.

Maintaining Air Quality

Connect pollutant sources, chemical effects, evidence, and mitigation without overstating a single cause or solution.

Need a different route?

IP students should use the IP upper-secondary Chemistry notes and follow your current school scope first.
The existing Sec 3 Chemistry foundation guide remains available for Sec 3 foundation revision.
For laboratory skills and practical-paper preparation, use the O-Level Chemistry practical hub.

Source and scope

Official curriculum source: SEAB 2027 SEC G3 Chemistry K324 syllabus. Checked 15 July 2026. Recheck codes, outcomes and assessment details before annual updates.

The focus lines are Eclat revision guidance. They are not quoted syllabus text and do not replace the official learning outcomes.

Common questions

Is this the 2027 Chemistry syllabus?
This hub maps the official 2027 SEC G3 Chemistry K324 top-level topics. The linked SEAB syllabus remains authoritative for every assessable learning outcome and paper detail.
Why does the page also say O-Level and 6092?
O-Level is still familiar reader language and 6092 is the 2026-and-earlier reference code. Students sitting in 2027 should use K324, while 2026 candidates must follow their current legacy syllabus and school instructions.
Can IP students use this page?
Only as a national comparison. IP schools control their own sequence, depth, and assessment scope, so IP students should use the separate IP route and follow current school materials first.