Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/42 May/June 2022 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 2, May/June 2022: the question paper and its official mark scheme, 6 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 6
- Marks
- 80
- Grade A from
- 44
File names: 0620_s22_qp_42 · 0620_s22_ms_42
Grade thresholds for 0620/42 May/June 2022
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 | F | G |
|---|---|---|---|---|---|---|
| 44 | 33 | 22 | 18 | 13 | 9 | 5 |
Topics in this paper
Which syllabus chapters 0620/42 May/June 2022 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Organic chemistry | 2 | 24 |
| The Periodic Table | 2 | 22 |
| Acids, bases and salts | 1 | 21 |
| Atoms, elements and compounds | 1 | 13 |
Questions in 0620/42 May/June 2022
- Question 1
The symbols of the elements of Period 3 of the Periodic Table are shown. Na Mg Al Si P S Cl Ar Answer the following questions about these elements. Each symbol may be used once, more than once or not …
- Question 2
Calcium hydroxide, Ca(OH)2, is slightly soluble in water. (a) Calcium hydroxide can be made by the reaction of calcium with water. (i) Write the chemical equation for this reaction. (ii) Name another substance that reacts with water to form calcium …
- Question 3
Transition elements are found in the middle block of the Periodic Table. (a) Chromium has several isotopes. Manganese has only one isotope. (i) State what is meant by the term isotopes. (ii) State the nucleon number of manganese. (iii) Complete …
- Question 4
Fluorine and chlorine are halogens. (a) Suggest the appearance of fluorine. (b) Fluorine reacts with sulfur to form a compound which has 25.2% sulfur by mass and a relative molecular mass of 254. Determine the molecular formula of this compound. …
- Question 5
The reaction scheme shows five organic reactions, numbered 1 to 5. carbon dioxide + water ethanol sugar alkene A alkane B compound …
- Question 6
This question is about polymers. (a) Polymer X is a condensation polymer. Part of the structure of polymer X is shown. …
Other Chemistry papers from May/June 2022
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