Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/42 Feb/March 2019 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 2, Feb/March 2019: 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
- 59
File names: 0620_m19_qp_42 · 0620_m19_ms_42
Grade thresholds for 0620/42 Feb/March 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 | F | G |
|---|---|---|---|---|---|---|
| 59 | 50 | 40 | 34 | 27 | 20 | 14 |
Topics in this paper
Which syllabus chapters 0620/42 Feb/March 2019 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Atoms, elements and compounds | 2 | 27 |
| Acids, bases and salts | 2 | 22 |
| Electrochemistry | 1 | 16 |
| The Periodic Table | 1 | 15 |
Questions in 0620/42 Feb/March 2019
- Question 1
Period 3 of the Periodic Table is shown. sodium magnesium aluminium silicon phosphorus sulfur chlorine argon Answer the following questions using only these elements. Each element may be used once, more than once or not at all. State which element: …
- Question 2
(a) The table gives information about some atoms or ions, A, B and C. Complete the table. number of protons number of electrons electronic structure charge …
- Question 3
Fluorine is a Group VII element. Fluorine forms compounds with metals and non-metals. (a) Predict the physical state of fluorine at room temperature and pressure. (b) Fluorine exists as diatomic molecules. Complete the dot-and-cross diagram to show the electron arrangement …
- Question 4
This question is about ethanoic acid, CH3COOH. (a) Ethanoic acid is manufactured from methanol and carbon monoxide. CH3OH(g) + CO(g) CH3COOH(g) The process is done at 200 °C and 30 atmospheres pressure. The forward reaction is exothermic. Complete the table …
- Question 5
Titanium is extracted from an ore called rutile. Rutile is an impure form of titanium(IV) oxide, TiO2. (a) Rutile is mixed with coke and heated in a furnace through which chlorine gas is passed. The product is gaseous titanium(IV) chloride, …
- Question 6
This question is about transition elements. (a) Transition elements are harder and stronger than Group I elements. Describe two other differences in physical properties between transition elements and Group I elements. …
Other Chemistry papers from Feb/March 2019
- 0620/12 Multiple choice (Core)
- 0620/22 Multiple choice (Extended)
- 0620/32 Theory (Core)
- 0620/62 Alternative to Practical