Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/43 Oct/Nov 2016 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 3, Oct/Nov 2016: 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
- 45
File names: 0620_w16_qp_43 · 0620_w16_ms_43
Grade thresholds for 0620/43 Oct/Nov 2016
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 |
|---|---|---|---|---|---|---|
| 45 | 35 | 25 | 21 | 17 | 14 | 11 |
Topics in this paper
Which syllabus chapters 0620/43 Oct/Nov 2016 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Acids, bases and salts | 3 | 41 |
| Electrochemistry | 1 | 17 |
| Stoichiometry | 1 | 13 |
| Atoms, elements and compounds | 1 | 9 |
Questions in 0620/43 Oct/Nov 2016
- Question 1
(a) Complete the table. particle charge relative mass proton +1 neutron 1 electron (b) The following are isotopes of carbon. …
- Question 2
Beryllium is a metallic element in Group II. (a) Give the electronic structure of a beryllium atom. (b) Give the formula of beryllium oxide. (c) (i) Describe the bonding in a metallic element such as beryllium. Include a labelled diagram …
- Question 3
When lead(II) nitrate is heated, two gases are given off and solid lead(II) oxide remains. The equation for the reaction is shown. 2Pb(NO3)2(s) → 2PbO(s) + 4NO2(g) …
- Question 4
Silicon(IV) oxide and sodium chloride have different types of bonding and structure. (a) Name the type of bonding present in silicon(IV) oxide, sodium chloride. (b) Name the type of structure present in silicon(IV) oxide. (c) (i) Silicon(IV) oxide has a …
- Question 5
Sulfuric acid can be manufactured from the raw materials sulfur, air and water. The process can be divided into four stages. stage 1 converting sulfur into sulfur dioxide stage 2 converting sulfur dioxide into sulfur trioxide stage 3 converting sulfur …
- Question 6
Synthetic polyamides are made by condensation polymerisation. (a) (i) What is meant by the term condensation polymerisation? (ii) Name another type of polymerisation. (b) One repeat unit of a synthetic polyamide is represented by the following structure. …
Other Chemistry papers from Oct/Nov 2016
- 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