Cambridge IGCSE · 0620 · Paper 3 · Theory (Core)
Chemistry 0620/32 Oct/Nov 2019 past paper
Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 2, Oct/Nov 2019: 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
- 51
File names: 0620_w19_qp_32 · 0620_w19_ms_32
Grade thresholds for 0620/32 Oct/Nov 2019
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 |
|---|---|---|---|---|
| 51 | 44 | 36 | 28 | 21 |
Topics in this paper
Which syllabus chapters 0620/32 Oct/Nov 2019 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| States of matter | 2 | 26 |
| Organic chemistry | 1 | 14 |
| Electrochemistry | 1 | 12 |
| Chemistry of the environment | 1 | 10 |
| Acids, bases and salts | 1 | 10 |
| Atoms, elements and compounds | 1 | 8 |
Questions in 0620/32 Oct/Nov 2019
- Question 1
This question is about solids, liquids and gases. (a) The list gives the names of nine substances. aqueous copper(II) sulfate aqueous potassium manganate(VII) aqueous sodium chloride dilute hydrochloric acid ethanol hexene mercury octane water Answer the following questions about these …
- Question 2
Biogas is made by fermenting animal and vegetable waste. (a) The table shows the percentage composition of the gases present in a sample of biogas. substance present percentage present in biogas carbon dioxide hydrogen 1.0 methane 61.5 nitrogen 8.5 water …
- Question 3
(a) A student investigated the reaction of calcium carbonate with an excess of dilute hydrochloric acid by measuring the volume of carbon dioxide produced at 10 second intervals. CaCO3 + 2HCl CaCl 2 + CO2 + H2O The results are …
- Question 4
An isotope of calcium is written as shown. (a) (i) Deduce the number of protons, electrons and neutrons in this isotope of calcium. number of protons number of electrons number of neutrons (ii) State one industrial use of radioactive …
- Question 5
This question is about the halogens and compounds of the halogens. (a) The properties of some halogens are shown in the table. element melting point in °C boiling point in °C density of liquid at boiling point in g / …
- Question 6
This question is about compounds of nitrogen. (a) Aqueous ammonia is alkaline. (i) Which one of the following pH values could be the pH of aqueous ammonia? Draw a circle around the correct answer. pH 1 pH 5 pH 7 …
- Question 7
(a) Concentrated hydrochloric acid is electrolysed using graphite electrodes. (i) Name the products of this electrolysis at: the positive electrode the negative electrode. (ii) Suggest one observation that is made at the negative electrode. (b) Dilute hydrochloric acid reacts …
Other Chemistry papers from Oct/Nov 2019
- 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