Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/42 Oct/Nov 2023 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 2, Oct/Nov 2023: 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
- 46
File names: 0620_w23_qp_42 · 0620_w23_ms_42
Grade thresholds for 0620/42 Oct/Nov 2023
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 |
|---|---|---|---|---|---|---|
| 46 | 36 | 26 | 21 | 17 | 13 | 9 |
Topics in this paper
Which syllabus chapters 0620/42 Oct/Nov 2023 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Atoms, elements and compounds | 2 | 22 |
| Metals | 1 | 17 |
| Chemical energetics | 1 | 16 |
| Electrochemistry | 1 | 14 |
| Organic chemistry | 1 | 11 |
Questions in 0620/42 Oct/Nov 2023
- Question 1
Table 1.1 gives the electronic configurations of some atoms and ions, A to G. Table 1.1 electronic configuration …
- Question 2
Cobalt and copper are transition elements. (a) Copper has two naturally occurring isotopes, 63Cu and 65Cu. Cobalt has only one naturally occurring isotope, 59Co. (i) Complete Table 2.1 to show the number of protons, neutrons and electrons in the 59Co …
- Question 3
Iron is manufactured in a blast furnace. (a) Three of the starting materials added to the blast furnace are coke, iron ore and limestone. Name the other starting material added to the blast furnace. (b) The source of iron in …
- Question 4
This question is about lead(II) chloride, PbCl …
- Question 5
Chemical reactions can involve transfer of thermal energy. (a) State the term used for the transfer of thermal energy during a reaction. (b) Tetrachloromethane gas, CCl 4(g), reacts with steam as shown. CCl …
- Question 6
A homologous series is a family of organic compounds whose members have similar chemical properties. (a) Give two characteristics that are the same for all members of a homologous series. …
Other Chemistry papers from Oct/Nov 2023
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