Cambridge IGCSE · 0620 · Paper 3 · Theory (Core)
Chemistry 0620/32 Oct/Nov 2020 past paper
Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 2, Oct/Nov 2020: the question paper and its official mark scheme, 8 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 8
- Marks
- 80
- Grade A from
- 43
File names: 0620_w20_qp_32 · 0620_w20_ms_32
Grade thresholds for 0620/32 Oct/Nov 2020
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 |
|---|---|---|---|---|
| 43 | 36 | 29 | 22 | 15 |
Topics in this paper
Which syllabus chapters 0620/32 Oct/Nov 2020 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Metals | 2 | 19 |
| Chemistry of the environment | 1 | 13 |
| Organic chemistry | 1 | 10 |
| Electrochemistry | 1 | 10 |
| Chemical reactions | 1 | 10 |
| Atoms, elements and compounds | 1 | 9 |
| Acids, bases and salts | 1 | 9 |
Questions in 0620/32 Oct/Nov 2020
- Question 1
(a) The diagram shows part of the Periodic Table. I II III IV V VI VII VIII Ca Fe Pt Zn Al Cl Br Ar …
- Question 2
The table shows the mass of air pollutants, in nanograms, in 1000 cm3 samples of air taken over a four month period. mass of pollutant in 1000 cm3 of air / nanograms month oxides of nitrogen sulfur dioxide carbon monoxide …
- Question 3
Some properties of four substances, …
- Question 4
The structure of compound J is shown. …
- Question 5
Ethane is an alkane. (a) Draw the structure of ethane to show all of the atoms and all of the bonds. (b) Complete the chemical equation for the complete combustion of propane. …
- Question 6
Electrolysis is used to extract reactive metals from metal compounds. (a) Describe the electrolysis of molten sodium chloride. In your answer include: …
- Question 7
A student investigated the rate of decomposition of hydrogen peroxide, H2O2, in the presence of a catalyst by measuring the volume of oxygen released at 10 second intervals. …
- Question 8
This question is about metals and compounds of metals. (a) Iron reacts with dilute hydrochloric acid to form an iron(II) salt and a gas which pops with a lighted splint. Complete the word equation for this reaction. iron + hydrochloric …
Other Chemistry papers from Oct/Nov 2020
- 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)
- 0620/33 Theory (Core)
- 0620/41 Theory (Extended)
- 0620/42 Theory (Extended)
- 0620/43 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical