Cambridge O Level · 5070 · Paper 2 · Theory
Chemistry 5070/22 Oct/Nov 2021 past paper
Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 2, Oct/Nov 2021: the question paper and its official mark scheme, 10 questions worth 85 marks, with the grade thresholds. Free to open, no account needed.
- Questions
- 10
- Marks
- 75
- Grade A from
- 48
File names: 5070_w21_qp_22 · 5070_w21_ms_22
Grade thresholds for 5070/22 Oct/Nov 2021
The minimum raw marks Cambridge set for each grade on this component (out of 75). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E |
|---|---|---|---|---|
| 48 | 37 | 24 | 17 | 9 |
Topics in this paper
Which syllabus chapters 5070/22 Oct/Nov 2021 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/22 Oct/Nov 2021
- Question 1
Choose from the following chlorides to answer the questions. aluminium chloride ammonium chloride cobalt(II) chloride hydrogen chloride iron(III) chloride potassium chloride silver chloride sodium chloride Each chloride may be used once, more than once or not at all. State which …
- Question 2
This question is about pollutant gases. (a) Hydrocarbons such as octane are used as fuels for cars. The list shows the gases present in a car exhaust. carbon dioxide carbon monoxide nitrogen nitrogen dioxide octane water vapour State which two …
- Question 3
Magnesium ribbon reacts with dilute hydrochloric acid. Mg(s) + 2HCl(aq) MgCl2(aq) …
- Question 4
Alkanes are a homologous series of hydrocarbons. The boiling point, melting point and density of alkanes increase as the number of carbon atoms increases. (a) (i) Give one other physical property of alkanes which increases as the number of carbon …
- Question 5
Lithium reacts with aqueous zinc iodide. 2Li + ZnI2 2LiI + Zn (a) Explain, by referring to the equation, why this reaction involves both oxidation and reduction. (b) Acidified aqueous silver nitrate is added to aqueous zinc iodide. State the …
- Question 6
Phosphorus reacts with hydrogen to produce phosphine, PH3. …
- Question 7
Sodium is a metal in Group I of the Periodic Table. Diamond (carbon) is a non-metal which is a good conductor of heat. (a) State two differences in the physical properties of sodium and diamond. …
- Question 8
The structure of an organic compound, T, is shown. …
- Question 9
This question is about sulfuric acid and sulfates. (a) (i) Sulfur is one of the raw materials used in the Contact process to make sulfuric acid. Name two other raw materials used to make sulfuric acid. and (ii) Name the …
- Question 10
This question is about elements in Group V of the Periodic Table. (a) The table shows some properties of the Group V elements. element density at room temperature in g / cm3 melting point in °C nitrogen …
Other Chemistry papers from Oct/Nov 2021
- 5070/11 Multiple choice
- 5070/12 Multiple choice
- 5070/21 Theory
- 5070/41 Alternative to Practical
- 5070/42 Alternative to Practical