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4CH1IGCSE

Chemistry

28 topics · 4 specification chapters

Topics covered

28

Avg. exam frequency

7%

Practice questions

37

Past paper years

2018 to 2024

4CH1 Topics

Frequency legend

High (≥14%)

Above avg (10 to 13%)

Average (<10%)

How Marking Works

0 / 3 marks

Student answer

Bonds are formed in the products, releasing energy as heat, so the reaction is exothermic.

MP1Bonds formed in products

MP2Bond formation releases energy

MP3Reaction is exothermic

Prioritise These First

Highest-frequency topics (2018 to 2024)

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

1

Chemical Formulae, Equations and Calculations17%

2

Acids, Alkalis and Titrations10%

3

Atomic Structure9%

4

Ionic Bonding9%

5

The Periodic Table8%