Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/41 May/June 2020 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 1, May/June 2020: the question paper and its official mark scheme, 5 questions worth 80 marks. Free to open, no account needed.
- Questions
- 5
- Marks
- 80
File names: 0620_s20_qp_41 · 0620_s20_ms_41
Topics in this paper
Which syllabus chapters 0620/41 May/June 2020 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Stoichiometry | 2 | 33 |
| Acids, bases and salts | 2 | 30 |
| Chemical reactions | 1 | 17 |
Questions in 0620/41 May/June 2020
- Question 1
This question is about elements X, Y and Z. (a) An atom of element X is represented as …
- Question 2
Magnesium is a metal. (a) Name and describe the bonding in magnesium. name description of bonding (b) Magnesium oxide, MgO, is formed when magnesium burns in oxygen. (i) Complete the dot-and-cross diagram to show the electron arrangement of the …
- Question 3
Sulfur dioxide, SO2, is used in the manufacture of sulfuric acid. (a) In the first stage of the process, sulfur dioxide is obtained from sulfur-containing ores. Name one of these ores. (b) The next stage of the process is a …
- Question 4
This question is about reactions of bases and acids. (a) Ammonia is a gas at room temperature. What is the test for ammonia gas? Describe the positive result of this test. test result (b) Ammonia reacts with water to …
- Question 5
Ethanol is manufactured by two different processes. (a) For each process, name the organic reactant and state the type of reaction. organic reactant type of reaction organic reactant type of reaction (b) Alcohols can be oxidised to form carboxylic …
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