4CH1IGCSE

Chemistry

28 topics · 4 specification chapters

Prioritise These First

Highest-frequency topics (2018 to 2024)

These topics account for the majority of exam marks. Revise them first.

Practise Now
1
Chemical Formulae, Equations and Calculations17%
2
Acids, Alkalis and Titrations10%
3
Atomic Structure9%
4
Ionic Bonding9%
5
The Periodic Table8%