Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/43 Oct/Nov 2017 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 3, 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
- 46
File names: 0620_w17_qp_43 · 0620_w17_ms_43
Grade thresholds for 0620/43 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 |
|---|---|---|---|---|---|---|
| 46 | 37 | 27 | 24 | 19 | 14 | 9 |
Topics in this paper
Which syllabus chapters 0620/43 Oct/Nov 2017 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Metals | 1 | 22 |
| Atoms, elements and compounds | 2 | 15 |
| Organic chemistry | 1 | 12 |
| Electrochemistry | 1 | 11 |
| Chemical reactions | 1 | 10 |
| Chemistry of the environment | 1 | 10 |
Questions in 0620/43 Oct/Nov 2017
- Question 1
Substances can be classified as elements, compounds or mixtures. State whether each of the following is an element, a compound or a mixture. (a) brass (b) gold (c) butane (d) air
- Question 2
(a) (i) Define the term molecule. (ii) Define the term element. (b) The table shows the composition of four atoms or ions, …
- Question 3
Iron is extracted from its ore using coke in a blast furnace. slag molten iron air air waste gases raw materials: coke, iron ore, limestone (a) Name the ore of iron which is mainly iron(III) oxide. (b) Describe the reactions …
- Question 4
Hydrogen and oxygen react together in a hydrogen fuel cell. A hydrogen fuel cell is shown in the diagram. membrane water hydrogen H2 oxygen O2 V electrolyte (a) Name the process by which oxygen is obtained from air. (b) (i) …
- Question 5
(a) (i) Name the products formed when sodium nitrate is heated. (ii) When copper(II) nitrate, Cu(NO3)2, undergoes thermal decomposition, three products are formed. One of the products is nitrogen dioxide, NO2. Write a chemical equation for the thermal decomposition of …
- Question 6
(a) Alkanes and alkenes are two homologous series of hydrocarbons. (i) What is meant by the term hydrocarbon? (ii) What is the general formula of the homologous series of alkanes, alkenes? (iii) Other than having a general formula, state two …
- Question 7
To avoid the issue of disclosure of answer-related information to candidates, all copyright acknowledgements are reproduced online in the Cambridge International Examinations Copyright Acknowledgements Booklet. This is produced for each series of examinations and is freely available to download at …
Other Chemistry papers from Oct/Nov 2017
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- 0620/21 Multiple choice (Extended)
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- 0620/31 Theory (Core)
- 0620/32 Theory (Core)
- 0620/33 Theory (Core)
- 0620/41 Theory (Extended)
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- 0620/61 Alternative to Practical
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- 0620/63 Alternative to Practical