Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/43 May/June 2019 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 3, May/June 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
- 52
File names: 0620_s19_qp_43 · 0620_s19_ms_43
Grade thresholds for 0620/43 May/June 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 |
|---|---|---|---|---|---|---|
| 52 | 40 | 28 | 23 | 19 | 14 | 9 |
Topics in this paper
Which syllabus chapters 0620/43 May/June 2019 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Atoms, elements and compounds | 2 | 23 |
| Stoichiometry | 1 | 17 |
| Chemical reactions | 1 | 15 |
| Electrochemistry | 1 | 13 |
| Organic chemistry | 1 | 12 |
Questions in 0620/43 May/June 2019
- Question 1
Atoms contain particles called electrons, neutrons and protons. (a) Complete the table. particle where the particle is found in an atom relative mass relative charge orbiting the nucleus …
- Question 2
Magnesium exists as three isotopes, 24Mg 12 , 25Mg 12 and 26Mg …
- Question 3
(a) (i) Sodium is in Group I of the Periodic Table. Describe two physical properties of sodium which are different from the physical properties of transition elements such as copper. …
- Question 4
Solutions of ionic compounds can be broken down by electrolysis. (a) Concentrated aqueous copper(II) chloride was electrolysed using the apparatus shown. power supply + – anode made of platinum concentrated aqueous copper(II) chloride cathode made of platinum The ionic half-equations …
- Question 5
Carboxylic acids react with alcohols to form esters. The reaction is reversible. The equation for the reaction between ethanoic acid and ethanol is shown. CH3COOH + CH3CH2OH CH3COOCH2CH3 …
- Question 6
(a) Two hydrocarbons have the structures shown. …
Other Chemistry papers from May/June 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)
- 0620/32 Theory (Core)
- 0620/33 Theory (Core)
- 0620/41 Theory (Extended)
- 0620/42 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical