O Level Chemistry (Cambridge)
Cambridge O Level Chemistry introduces core chemical ideas — atoms, bonding, the periodic table, acids and bases, and simple organic chemistry — the foundation later Chemistry study builds on.
O Level Chemistry Chemistry, at a Glance
At this stage, the priority is getting the fundamentals genuinely secure: understanding why a reaction happens, not just memorising a word equation. Resources on this page are organised so a student can work through one topic at a time, rather than jumping between whole exam papers.
Every O Level Chemistry Topic, Organised
Unit 1 — States of Matter
Unit 2 — Atoms, Elements and Compounds
2.1 Elements, Compounds and Mixtures
2.2 Atomic Structure and the Periodic Table
2.3 Isotopes
2.4 Ions and Ionic Bonds
2.5 Simple Molecules and Covalent Bonds
2.6 Giant Covalent Structures
2.7 Metallic Bonding
Unit 3 — Stoichiometry
Unit 4 — Electrochemistry
Unit 5 — Chemical Energetics
Unit 6 — Chemical Reactions
Unit 7 — Acids, Bases and Salts
Unit 8 — The Periodic Table
Unit 9 — Metals
Unit 10 — Chemistry of the Environment
Unit 11 — Organic Chemistry
11.1 Formulae, Functional Groups and Terminology
11.2 Naming Organic Compounds
11.3 Fuels
11.4 Alkanes
11.5 Alkenes
11.6 Alcohols
11.7 Carboxylic Acids
11.8 Polymers
Theory Questions
Theory questions for O Level Chemistry will be organised topic by topic, testing understanding the way Cambridge's own papers do, and added here as each topic is published.
MCQs
Quick-check multiple-choice questions for O Level Chemistry will let students test recall and understanding one topic at a time, added here as each topic is published.
Worksheets
Worksheets for O Level Chemistry will give structured practice on a single topic at a time, added here as each topic is published.
Marking Schemes
Mark schemes for O Level Chemistry will sit alongside each set of questions, showing exactly what a full-mark answer needs to include.
Online Chemistry Tutor
Alongside these resources, Naeem Bukhari teaches O Level Chemistry online, one-to-one or in small groups — see the Online O Level Chemistry Tutor page for details.
Frequently Asked Questions
Is Cambridge O Level Chemistry the same as IGCSE Chemistry?
They cover similar ground but are separate qualifications with their own papers and grading. This page is for O Level specifically — IGCSE has its own page.
What comes after O Level Chemistry?
Students typically progress to AS and then A Level Chemistry, both covered separately on this site.
How can I get extra help with O Level Chemistry?
One-to-one online tuition is available — see the Online Chemistry Tutor section below.