Cambridge IGCSE · 0620 · Paper 3 · Theory (Extended)
Chemistry 0620/31 May/June 2012 past paper
Cambridge IGCSE Chemistry (0620) Paper 3 (Theory (Extended)), variant 1, May/June 2012: 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
- 37
File names: 0620_s12_qp_31 · 0620_s12_ms_31
Grade thresholds for 0620/31 May/June 2012
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 |
|---|---|---|---|---|
| 37 | 0 | 22 | 0 | 11 |
Topics in this paper
Which syllabus chapters 0620/31 May/June 2012 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Acids, bases and salts | 3 | 29 |
| Organic chemistry | 2 | 22 |
| Metals | 1 | 12 |
| The Periodic Table | 1 | 9 |
| Chemical reactions | 1 | 8 |
Questions in 0620/31 May/June 2012
- Question 1
For Examiner’s Use 1 The diagram below shows part of the Water Cycle. sea H2O(g) H2O(l) Sun cloud H2O(l) land rain (a) (i) State the name of each of the following changes of state. …
- Question 2
Three ways of making salts are ● titration using a soluble base or carbonate ● neutralisation using an insoluble base or carbonate ● precipitation. (a) Complete the following table of salt preparations. method reagent 1 reagent 2 salt titration sodium …
- Question 3
For Examiner’s Use 3 The Group I metals show trends in both their physical and chemical properties. (a) (i) How do their melting points vary down the Group? (ii) Which element in the Group has the highest density? (iii) All …
- Question 4
Vanadium is a transition element. It has more than one oxidation state. The element and its compounds are often used as catalysts. (a) Complete the electron distribution of vanadium by inserting one number. …
- Question 5
Reactive metals tend to have unreactive compounds. The following is part of the reactivity series. sodium most reactive calcium zinc copper silver least reactive (a) Sodium hydroxide and sodium carbonate do not decompose when heated. The corresponding calcium compounds do …
- Question 6
Butane is an alkane. It has the following structural formula. …
- Question 7
For Examiner’s Use 7 Plastics are polymers. They are formed from their monomers by polymerisation. (a) Two methods for the disposal of waste plastics are ● burning ● recycling. Describe one advantage and one disadvantage of each method. burning recycling …
- Question 8
For Examiner’s Use 8 Iron and steel rust when exposed to water and oxygen. Rust is hydrated iron(III) oxide. (a) The following cell can be used to investigate rusting. …
Other Chemistry papers from May/June 2012
- 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