Cambridge IGCSE · 0620 · Paper 3 · Theory (Extended)
Chemistry 0620/31 May/June 2010 past paper
Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Extended)), variant 1, May/June 2010: the question paper and its official mark scheme, 8 questions worth 80 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 8
- Marks
- 80
- Grade A from
- 41
File names: 0620_s10_qp_31 · 0620_s10_ms_31
Grade thresholds for 0620/31 May/June 2010
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 |
|---|---|---|---|---|
| 41 | 0 | 23 | 0 | 11 |
Topics in this paper
Which syllabus chapters 0620/31 May/June 2010 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Acids, bases and salts | 2 | 15 |
| Organic chemistry | 1 | 14 |
| Atoms, elements and compounds | 1 | 13 |
| Chemistry of the environment | 1 | 11 |
| Metals | 1 | 10 |
| Stoichiometry | 1 | 10 |
| Chemical reactions | 1 | 7 |
Questions in 0620/31 May/June 2010
- Question 1
For Examiner’s Use 1 Choose an element which fi ts each of the following descriptions. (i) It is a yellow solid which burns to form an acidic oxide. (ii) This element is a black solid which, when heated, forms a …
- Question 2
Ozone is a form of oxygen. Ozone is present in the upper atmosphere and it prevents dangerous solar radiation from reaching the Earth’s surface. Some of the chemicals that diffuse into the upper atmosphere decompose ozone. Chemicals that have this …
- Question 3
For Examiner’s Use 3 A diagram of the apparatus which could be used to investigate the rate of reaction between magnesium and an excess of an acid is drawn below. 100 cm3 of acid 1.0 mol / dm3 (excess) volume …
- Question 4
For Examiner’s Use 4 Hydrolysis is used in chemistry to break down complex molecules into simpler ones. (a) Compounds containing the group are esters. (i) Give the names and formulae of the two compounds formed when the ester ethyl propanoate …
- Question 5
Carbon and silicon are elements in Group IV. Both elements have macromolecular structures. (a) Diamond and graphite are two forms of the element carbon. (i) Explain why diamond is a very hard substance. (ii) Give one use of diamond. For …
- Question 6
For Examiner’s Use 6 Iodine reacts with chlorine to form dark brown iodine monochloride. I2 + Cl2 → 2ICl This reacts with more chlorine to give yellow iodine trichloride. There is an equilibrium between these iodine chlorides. ICl (l) + …
- Question 7
For Examiner’s Use 7 Titanium is a transition element. It is isolated by the following reactions. titanium ore → titanium(IV) oxide → titanium(IV) chloride → titanium TiO2 TiCl 4 Ti (a) Why is it usually necessary to include a number …
- Question 8
For Examiner’s Use 8 Methanoic acid is the fi rst member of the homologous series of carboxylic acids. (a) Give two general characteristics of a homologous series. (b) In some areas when water is boiled, the inside of kettles become …
Other Chemistry papers from May/June 2010
- 0620/11 Multiple choice (Core)
- 0620/12 Multiple choice (Core)
- 0620/13 Multiple choice (Core)
- 0620/21 Theory (Core)
- 0620/22 Theory (Core)
- 0620/23 Theory (Core)
- 0620/32 Theory (Extended)
- 0620/33 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical