Cambridge IGCSE · 0620 · Paper 2 · Theory (Core)
Chemistry 0620/22 May/June 2015 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Theory (Core)), variant 2, May/June 2015: 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
- 50
File names: 0620_s15_qp_22 · 0620_s15_ms_22
Grade thresholds for 0620/22 May/June 2015
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 | 42 | 33 | 28 | 24 |
Topics in this paper
Which syllabus chapters 0620/22 May/June 2015 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Acids, bases and salts | 2 | 20 |
| Metals | 1 | 14 |
| Organic chemistry | 1 | 13 |
| Chemical reactions | 1 | 12 |
| States of matter | 1 | 11 |
| Chemistry of the environment | 1 | 10 |
Questions in 0620/22 May/June 2015
- Question 1
The structures of six compounds containing oxygen are shown below. O2− Ca2+ O2− Ca2+ Ca2+ O2− Ca2+ O2− O2− Ca2+ O2− Ca2+ NO3 − NH4 + NH4 + NH4 + NH4 + NO3 − NH4 + NO3 − NO3 − …
- Question 2
An aqueous solution of sodium hydrogen carbonate is added to an aqueous solution of citric acid. The mixture is stirred. The temperature is measured before and after the addition. citric acid sodium hydrogen carbonate …
- Question 3
When sodium hydrogen carbonate is heated at 60 °C, carbon dioxide is given off. (a) (i) Complete the equation for this reaction. NaHCO3 Na2CO3 + CO2 + (ii) What type of chemical reaction is this? Tick one box. addition neutralisation …
- Question 4
A student investigated the rate of reaction of zinc with dilute hydrochloric acid. Zn(s) + 2HCl(aq) ZnCl2(aq) …
- Question 5
Cinnamic acid is found in plants called balsams. The structure of cinnamic acid is shown below. …
- Question 6
The table shows some properties of aluminium, copper, iron and sodium. metal electrical conductivity density in g / cm3 melting point / °C strength colour aluminium very good 2.70 660 fairly strong silver copper very good 8.92 1083 very strong …
- Question 7
A teacher placed a few drops of liquid bromine in the bottom of a test-tube containing a solvent. After 10 minutes, the brown colour of the bromine had spread a little way through the solvent. After 2 hours, the brown …
Other Chemistry papers from May/June 2015
- 0620/11 Multiple choice (Core)
- 0620/12 Multiple choice (Core)
- 0620/13 Multiple choice (Core)
- 0620/21 Theory (Core)
- 0620/23 Theory (Core)
- 0620/31 Theory (Extended)
- 0620/32 Theory (Extended)
- 0620/33 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical