Cambridge IGCSE · 0620 · Paper 3 · Theory (Core)
Chemistry 0620/32 May/June 2021 past paper
Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 2, May/June 2021: the question paper and its official mark scheme, 8 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 8
- Marks
- 80
- Grade A from
- 39
File names: 0620_s21_qp_32 · 0620_s21_ms_32
Grade thresholds for 0620/32 May/June 2021
The minimum raw marks Cambridge set for each grade on this component (out of 80). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E |
|---|---|---|---|---|
| 39 | 32 | 25 | 17 | 9 |
Topics in this paper
Which syllabus chapters 0620/32 May/June 2021 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Chemistry of the environment | 3 | 36 |
| Atoms, elements and compounds | 2 | 15 |
| The Periodic Table | 1 | 11 |
| States of matter | 1 | 9 |
| Organic chemistry | 1 | 9 |
Questions in 0620/32 May/June 2021
- Question 1
(a) The electronic structures of five atoms, …
- Question 2
The table shows the masses of some of the ions in 1000 cm3 of fruit juice. name of ion formula of ion mass of ion in 1000 cm3 of fruit juice / mg ammonium NH4 + 15 Ca2+ 71 chloride …
- Question 3
The table shows some properties of four halogens. element melting point / °C boiling point / °C density of liquid at boiling point in g / cm3 colour chlorine …
- Question 4
The structure of succinic acid is shown. …
- Question 5
(a) Calcium carbonate is heated in a closed container. CaCO3 CaO + CO2 (i) State the name of a rock which is mainly calcium carbonate. (ii) State the meaning of the symbol . (iii) CaO is lime. Lime is used …
- Question 6
This question is about air and gases. (a) (i) State the percentage of oxygen in clean, dry air. % (ii) Name two other elements in clean, dry air. and (b) Lead and sulfur dioxide are pollutants of air. For …
- Question 7
(a) Dilute sulfuric acid is electrolysed using carbon electrodes. State the products of this electrolysis at: the negative electrode the positive electrode. (b) Graphite is a form of carbon. Graphite has a giant structure with covalent bonds. (i) State …
- Question 8
This question is about elements in the Periodic Table. (a) The table shows some properties of five elements, …
Other Chemistry papers from May/June 2021
- 0620/11 Multiple choice (Core)
- 0620/13 Multiple choice (Core)
- 0620/21 Multiple choice (Extended)
- 0620/22 Multiple choice (Extended)
- 0620/23 Multiple choice (Extended)
- 0620/31 Theory (Core)
- 0620/33 Theory (Core)
- 0620/41 Theory (Extended)
- 0620/42 Theory (Extended)
- 0620/43 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical