Cambridge IGCSE · 0620 · Paper 3 · Theory (Core)
Chemistry 0620/32 Feb/March 2020 past paper
Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 2, Feb/March 2020: 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
- 51
File names: 0620_m20_qp_32 · 0620_m20_ms_32
Grade thresholds for 0620/32 Feb/March 2020
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 |
|---|---|---|---|---|
| 51 | 44 | 35 | 26 | 17 |
Topics in this paper
Which syllabus chapters 0620/32 Feb/March 2020 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Acids, bases and salts | 2 | 17 |
| Metals | 1 | 13 |
| Organic chemistry | 1 | 12 |
| States of matter | 1 | 10 |
| Electrochemistry | 1 | 10 |
| Chemistry of the environment | 1 | 9 |
| Atoms, elements and compounds | 1 | 9 |
Questions in 0620/32 Feb/March 2020
- Question 1
(a) A list of compounds is shown. aluminium oxide calcium bromide calcium oxide ethane ethene hydrogen chloride methane nitrogen dioxide potassium iodide potassium manganate(VII) sodium chloride Answer the following questions using only the compounds in the list. Each compound may …
- Question 2
Iron is extracted by heating a mixture of coke (carbon), limestone and iron ore in air in a blast furnace. A diagram of the blast furnace is shown. coke (carbon) + limestone + iron ore air in molten iron slag …
- Question 3
Water is essential for many industrial processes. (a) State one use of water in industry. (b) What is the pH of pure water? Draw a circle around the correct answer. pH 0 pH 6 pH 7 pH 14 (c) Filtration …
- Question 4
Angelic acid and ethanoic acid are both carboxylic acids. The structure of angelic acid is shown. …
- Question 5
The table shows some properties of four metals in Group I of the Periodic Table. metal melting point / °C boiling point / °C relative electrical conductivity sodium 98 883 potassium …
- Question 6
This question is about the reactions of magnesium with nitric acid. (a) The equation for the reaction of magnesium with concentrated nitric acid is shown. Mg + 4HNO3 → Mg(NO3)2 + 2NO2 …
- Question 7
(a) The electrolysis of dilute sulfuric acid produces gases at both electrodes. (i) The incomplete apparatus is shown. electrolyte power supply + – Complete the diagram by: ● ● labelling the anode and cathode ● ● adding connecting wires ● …
- Question 8
(a) The structures of four substances …
Other Chemistry papers from Feb/March 2020
- 0620/12 Multiple choice (Core)
- 0620/22 Multiple choice (Extended)
- 0620/42 Theory (Extended)
- 0620/62 Alternative to Practical