Cambridge IGCSE · 0620 · Paper 3 · Theory (Core)
Chemistry 0620/33 Oct/Nov 2017 past paper
Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Core)), variant 3, Oct/Nov 2017: the question paper and its official mark scheme, 6 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 6
- Marks
- 80
- Grade A from
- 50
File names: 0620_w17_qp_33 · 0620_w17_ms_33
Grade thresholds for 0620/33 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 |
|---|---|---|---|---|
| 50 | 41 | 33 | 27 | 22 |
Topics in this paper
Which syllabus chapters 0620/33 Oct/Nov 2017 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Chemistry of the environment | 2 | 26 |
| Acids, bases and salts | 1 | 15 |
| Metals | 1 | 14 |
| Organic chemistry | 1 | 14 |
| Electrochemistry | 1 | 11 |
Questions in 0620/33 Oct/Nov 2017
- Question 1
The diagram shows the structures of five substances, …
- Question 2
The atmosphere of the planet Venus contains 96.4% carbon dioxide, 3.5% nitrogen and small amounts of other gases. (a) Describe how Venus’ atmosphere differs from the Earth’s atmosphere. Give three differences. …
- Question 3
The list shows some of the compounds used to manufacture ink. calcium carbonate ethanoic acid iron(II) sulfate potassium dichromate(VI) sodium sulfate sulfuric acid (a) Which compound is present in limestone? (b) Hydrated iron(II) sulfate is heated gently. FeSO4.7H2O FeSO4 …
- Question 4
The table shows the properties of four substances. substance boiling point electrical conductivity of solid electrical conductivity when molten density in g / cm3 aluminium high conducts conducts 2.70 diamond 3.51 potassium bromide high does not conduct conducts 2.75 sulfur …
- Question 5
Lead is extracted from an ore which contains lead(II) sulfide. (a) The ore is first heated in air. Balance the chemical equation for this reaction. 2PbS + O2 2PbO + SO2 (b) The lead(II) oxide produced is then reduced with …
- Question 6
The diagram shows a fractionating column used for the fractional distillation of petroleum. kerosene fraction F gasoline fraction refinery gas (a) On the diagram, write ● the letter X to show where the temperature in the fractionating column is highest, …
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)
- 0620/41 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