Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/41 Oct/Nov 2017 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 1, Oct/Nov 2017: 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
- 44
File names: 0620_w17_qp_41 · 0620_w17_ms_41
Grade thresholds for 0620/41 Oct/Nov 2017
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 | 34 | 24 | 21 | 16 | 13 | 10 |
Topics in this paper
Which syllabus chapters 0620/41 Oct/Nov 2017 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Organic chemistry | 1 | 19 |
| Electrochemistry | 1 | 14 |
| Chemical reactions | 1 | 12 |
| Stoichiometry | 1 | 11 |
| Metals | 1 | 10 |
| States of matter | 1 | 8 |
| Atoms, elements and compounds | 1 | 6 |
Questions in 0620/41 Oct/Nov 2017
- Question 1
The table gives information about five particles. The particles are all atoms or ions. particle number of protons number of neutrons number of electrons …
- Question 2
The graph shows how the temperature of a substance changes as it is cooled over a period of 30 minutes. The substance is a gas at the start. …
- Question 3
(a) When magnesium is added to aqueous copper(II) sulfate a reaction occurs. The ionic equation for the reaction is shown. Mg + Cu2+ Mg2+ + Cu (i) Give one change you would observe during this reaction. (ii) Explain why this …
- Question 4
(a) Ethanol, C2H5OH, can be made by fermentation. (i) Complete the chemical equation for the formation of ethanol by fermentation. C6H12O6 C2H5OH + (ii) State two conditions required for fermentation. …
- Question 5
(a) Solid copper(II) carbonate undergoes thermal decomposition. One of the products of the thermal decomposition is copper(II) oxide. (i) State the colour change of the solid seen during the reaction. start colour end colour (ii) Write a chemical equation for …
- Question 6
Aluminium is extracted from aluminium oxide by electrolysis. (a) Why is aluminium not extracted by heating aluminium oxide with carbon? (b) Aluminium oxide is an ionic compound with a high melting point. (i) Complete the dot-and-cross diagram to show the …
- Question 7
Copper(II) oxide reacts with dilute hydrochloric acid. CuO(s) + 2HCl (aq) CuCl 2(aq) …
Other Chemistry papers from Oct/Nov 2017
- 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