Cambridge IGCSE · 0620 · Paper 2 · Theory (Core)
Chemistry 0620/21 Oct/Nov 2012 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Theory (Core)), variant 1, Oct/Nov 2012: 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
File names: 0620_w12_qp_21 · 0620_w12_ms_21
Grade thresholds for 0620/21 Oct/Nov 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 |
|---|---|---|---|---|
| 0 | 0 | 51 | 0 | 37 |
Topics in this paper
Which syllabus chapters 0620/21 Oct/Nov 2012 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Acids, bases and salts | 2 | 28 |
| Organic chemistry | 2 | 23 |
| Atoms, elements and compounds | 1 | 13 |
| Chemistry of the environment | 1 | 10 |
| States of matter | 1 | 6 |
Questions in 0620/21 Oct/Nov 2012
- Question 1
For Examiner’s Use 1 The diagram shows the structures of fi ve compounds, …
- Question 2
For Examiner’s Use 2 Hydrogen chloride, HCl, is an acidic gas. (a) Draw a dot and cross diagram of a molecule of hydrogen chloride. Show only the outer electrons. (b) Hydrogen chloride dissolves in water to form a solution of …
- Question 3
For Examiner’s Use 3 The reactivity of different metal oxides was compared by heating them with metals in a crucible. heat mixture of metal oxide and metal The results are shown in the table below. mixture observations iron oxide + …
- Question 4
For Examiner’s Use 4 Lithium has two naturally-occurring isotopes, Li 6 3 and Li …
- Question 5
For Examiner’s Use 5 (a) Match the fuel on the left with the information on the right. The fi rst one has been done for you. uranium-236 a fuel with a relative molecular mass of 2 hydrogen the main constituent …
- Question 6
For Examiner’s Use 6 A student placed a crystal of silver nitrate and a crystal of potassium iodide in a dish of water. After an hour she observed that ● the crystals had disappeared, ● a yellow precipitate had appeared …
- Question 7
For Examiner’s Use 7 The diagram shows one molecule of sulfur. …
Other Chemistry papers from Oct/Nov 2012
- 0620/11 Multiple choice (Core)
- 0620/12 Multiple choice (Core)
- 0620/13 Multiple choice (Core)
- 0620/22 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