Cambridge IGCSE · 0620 · Paper 4 · Theory (Extended)
Chemistry 0620/41 Oct/Nov 2016 past paper
Cambridge IGCSE Chemistry (0620) Paper 4 (Theory (Extended)), variant 1, Oct/Nov 2016: 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
- 46
File names: 0620_w16_qp_41 · 0620_w16_ms_41
Grade thresholds for 0620/41 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 |
|---|---|---|---|---|---|---|
| 46 | 36 | 26 | 23 | 18 | 15 | 12 |
Topics in this paper
Which syllabus chapters 0620/41 Oct/Nov 2016 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Organic chemistry | 2 | 22 |
| Chemistry of the environment | 2 | 18 |
| States of matter | 2 | 15 |
| Chemical reactions | 1 | 13 |
| Electrochemistry | 1 | 12 |
Questions in 0620/41 Oct/Nov 2016
- Question 1
The table gives some information about five substances. substance melting point / °C boiling point / °C solubility in water electrical conductivity when molten electrical conductivity when solid …
- Question 2
Matter can exist as solid, liquid or gas. The arrows show some changes of state. solid liquid gas …
- Question 3
(a) Petroleum is a mixture of hydrocarbons. It is separated into useful fractions by fractional distillation. This can be done using the fractionating column shown. petroleum …
- Question 4
(a) Ammonia, NH3, is made by reacting nitrogen with hydrogen in the Haber process. (i) Write a chemical equation for the formation of ammonia in the Haber process. (ii) Name the raw materials from which nitrogen and hydrogen are obtained. …
- Question 5
Copper(II) sulfate solution was electrolysed using the apparatus shown. copper wire carbon cathode copper(II) sulfate solution carbon anode bubbles of gas …
- Question 6
Nylon, Terylene and proteins are all polymers. (a) What is a polymer? (b) Proteins are natural polymers. Proteins are biodegradable. (i) Name the type of linkage in proteins. (ii) What is meant by the term biodegradable? (iii) Name another natural …
- Question 7
Calcium chloride can be made by reacting calcium carbonate with hydrochloric acid. CaCO3(s) + 2HCl (aq) → CaCl 2(aq) …
- Question 8
Magnesium carbonate reacts with dilute hydrochloric acid. MgCO3(s) + 2HCl (aq) → MgCl 2(aq) …
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)
- 0620/42 Theory (Extended)
- 0620/43 Theory (Extended)
- 0620/61 Alternative to Practical
- 0620/62 Alternative to Practical
- 0620/63 Alternative to Practical