Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/41 May/June 2023 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 1, May/June 2023: the question paper and its official mark scheme, 7 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 7
- Marks
- 80
- Grade A from
- 48
File names: 0620_s23_qp_41 · 0620_s23_ms_41
Grade thresholds for 0620/41 May/June 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 |
|---|---|---|---|---|---|---|
| 48 | 36 | 23 | 19 | 15 | 10 | 6 |
Topics in this paper
Which syllabus chapters 0620/41 May/June 2023 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Acids, bases and salts | 2 | 19 |
| Atoms, elements and compounds | 2 | 19 |
| Electrochemistry | 1 | 16 |
| Chemical reactions | 1 | 14 |
| Organic chemistry | 1 | 12 |
Questions in 0620/41 May/June 2023
- Question 1
Some symbol equations and word equations, A to J, are shown. A Fe3+ + 3OH– → Fe(OH)3 …
- Question 2
(a) The symbols of the elements in Period 2 of the Periodic Table are shown. Li Be …
- Question 3
This question is about ionic and covalent compounds. (a) (i) Sodium reacts with oxygen to form the ionic compound sodium oxide. The electronic configurations of an atom of sodium and an atom of oxygen are shown in Fig. 3.1. oxygen …
- Question 4
Oxygen is produced by the decomposition of aqueous hydrogen peroxide. Manganese(IV) oxide, MnO2, is a catalyst for this reaction. (a) State the meaning of the term catalyst. (b) A student adds powdered manganese(IV) oxide to aqueous hydrogen peroxide in a …
- Question 5
This question is about electricity and chemical reactions. (a) The electrolysis of concentrated aqueous potassium bromide using graphite electrodes forms: ● hydrogen at the cathode ● bromine at the anode. The electrolyte becomes aqueous potassium hydroxide. (i) State what is …
- Question 6
This question is about sulfur and compounds of sulfur. Sulfur is converted into sulfuric acid, H2SO4, by the Contact process. The process involves four stages. stage 1 Molten sulfur is converted into sulfur dioxide. stage 2 Sulfur dioxide reacts with …
- Question 7
This question is about organic compounds. (a) Butane reacts with chlorine in a photochemical reaction. C4H10 + Cl 2 → C4H9Cl + HCl (i) State the meaning of the term photochemical. (ii) An organic compound with the formula C4H9Cl is …
Other Chemistry papers from May/June 2023
- 0620/11 Multiple choice (Core)
- 0620/12 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)
- 0620/32 Theory (Core)
- 0620/33 Theory (Core)
- 0620/42 Theory (Extended)
- 0620/43 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical