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O Level Chemistry

Here’s a compilation of our resources on O Level Chemistry.

O Level Chemistry Notes

Dot-and-cross diagrams of simple covalent molecules

Dot-and-cross diagrams of ionic compounds




Solubility of ionic compound in water

  • Qualitative analysis and testing for gases

Qualitative analysis Table: Testing for cations, anions and gases

Qualitative analysis observations and how to describe your observations to score for exams

  • Metals
  • Ammonia
  • Rate of reaction
  • Heat of reaction
  • Redox reaction
  • Electrolysis and electrochemical cells
  • Organic Chemistry

O Level Chemistry Concept maps

Find all of our other freebies here.

On-demand Topical Courses

Here. you’ll find all the topical courses we have created for O Level Chemistry students. Get these on-demand course and start learning now.

1. Foundation Topics:

In this course, students will learn the chapters on atomic structure, chemical bonding, elements, molecules and compounds, and also the fundamentals of chemistry – writing equations, and chemical formulae. Check out this course here.

2. Acids, bases and salts, Qualitative Analysis, Metals, Periodic Table, and Ammonia

In this course, students will learn acids, bases and salts, qualitative analysis, metals, periodic table and ammonia. I also share a way of remembering the metals in the reactivity series in this course. You can get this on-demand course here.

3. Mole concept and stochiometry

Questions on mole concept and stoichiometry can be combined with any other chapter. In this course, I will go through with you step- by-step all the concepts you need to know for mole concept and stoichiometry. You can get this on-demand course here.

4. Rate of reaction (reaction kinetics) and heat of reaction (enthalpy change of reaction)

These topics involve applying concepts learnt to scenario-based questions. In our on-demand course on the rate of reaction and heat of reaction, we go through the concepts and how to apply them to questions. You can get this on-demand course here.

5. Redox reactions, electrochemistry and electric cell

Learn redox reactions, and electrolysis and electric cell n this on-demand course here. Most schools cover electrolysis last, so if you want to learn ahead of your school, check out our course here.

6. Organic Chemistry

In O Level Chemistry, students are expected to know the properties, and reactions of alkanes, alkenes, alcohols, carboxylic acids, esters and polymers (addition and condensation polymers). We talk about them in detail in our on-demand course on O Level Organic Chemistry. You can get this on-demand course here.

O Level Chemistry Videos

Visit our Youtube channel for more Chemistry videos which we add from time to time.