Cambridge IGCSE · 0620 · Paper 3 · Theory (Core)
Chemistry 0620/31 May/June 2026 past paper
Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 1, May/June 2026: the question paper and its official mark scheme, 7 questions worth 80 marks. Free to open, no account needed.
- Questions
- 7
- Marks
- 80
File names: 0620_s26_qp_31 · 0620_s26_ms_31
Topics in this paper
Which syllabus chapters 0620/31 May/June 2026 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Metals | 1 | 16 |
| Chemical reactions | 1 | 12 |
| Organic chemistry | 1 | 12 |
| The Periodic Table | 1 | 11 |
| Atoms, elements and compounds | 1 | 10 |
| Chemistry of the environment | 1 | 10 |
| States of matter | 1 | 9 |
Questions in 0620/31 May/June 2026
- Question 1
The structures of six substances, A to F, are shown in Figure …
- Question 2
Table 2.1 shows some properties of the halogens. Table 2.1 halogen melting point in °C boiling point in °C density at room temperature and pressure in g / cm3 chlorine …
- Question 3
The equation for the reaction of magnesium with dilute hydrochloric acid is shown. Mg(s) + 2HCl (aq) MgCl 2(aq) …
- Question 4
This question is about organic compounds and their reactions. (a) Compound M is unsaturated. Figure 4.1 shows the displayed formula of compound …
- Question 5
Three states of matter are solid, liquid and gas. (a) State two general properties of a solid. …
- Question 6
Cobalt is a metal. (a) (i) State the period number of cobalt in the Periodic Table. (ii) Deduce the number of electrons, neutrons and protons in the cobalt ion shown. …
- Question 7
(a) State the percentage of clean, dry air that is nitrogen. (b) Sulfur dioxide is an air pollutant. (i) State one source of sulfur dioxide in the air. (ii) State one adverse effect of sulfur dioxide in the air. (iii) …
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