Cambridge O Level · 5070 · Paper 2 · Theory
Chemistry 5070/22 May/June 2017 past paper
Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 2, May/June 2017: 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
- 55
File names: 5070_s17_qp_22 · 5070_s17_ms_22
Grade thresholds for 5070/22 May/June 2017
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 |
|---|---|---|---|---|
| 55 | 41 | 28 | 23 | 17 |
Topics in this paper
Which syllabus chapters 5070/22 May/June 2017 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Acids, bases and salts | 3 | 25 |
| Organic chemistry | 2 | 18 |
| Chemical reactions | 1 | 10 |
| Stoichiometry | 1 | 10 |
| Atoms, elements and compounds | 1 | 8 |
| Chemical energetics | 1 | 8 |
| Electrochemistry | 1 | 6 |
Questions in 5070/22 May/June 2017
- Question 1
A1 Choose from the following chlorides to answer the questions. ammonium chloride calcium chloride carbon tetrachloride copper(II) chloride hydrogen chloride magnesium chloride zinc chloride Each chloride can be used once, more than once or not at all. Which chloride (a) …
- Question 2
A2 The table shows some information about six particles. (a) Complete the table. particle proton (atomic) number number of neutrons in particle number of electrons in particle 35Cl …
- Question 3
A3 Acids are neutralised by insoluble bases. (a) Magnesium chloride is a soluble salt that can be prepared from an insoluble base. (i) Name the acid and an insoluble base that can be used to make magnesium chloride. (ii) Describe …
- Question 4
A4 Sodium oxide, Na2O, is an ionic compound. (a) State the electronic configuration for each of the ions in sodium oxide. sodium ion oxide ion (b) When molten sodium oxide is electrolysed, sodium and oxygen are formed. Construct equations for …
- Question 5
A5 Ethanoic acid and butanoic acid are both carboxylic acids. ethanoic acid …
- Question 6
A6 Respiration is a reaction that takes place in living cells to release energy. The overall reaction involves the oxidation of glucose. …
- Question 7
B7 Copper reacts with hot concentrated aqueous sulfuric acid. Cu(s) + 2H2SO4(aq) CuSO4(aq) + SO2(g) …
- Question 8
B8 Nitrogen dioxide, NO2 , reacts with itself to make dinitrogen tetroxide, N2O4 , in an exothermic reaction. This reaction is investigated at 140 °C in a sealed container. A dynamic equilibrium mixture is established. 2NO2(g) N2O4(g) NO2(g) is a …
- Question 9
B9 Methane, ethane and propane are all gases at room temperature. (a) State a use of methane. (b) Describe one source of methane in the atmosphere. (c) State one possible environmental consequence of the presence of methane in the atmosphere. …
- Question 10
B10 The table shows some information about the homologous series of unbranched alcohols. name structure boiling point / °C methanol CH3OH 65 ethanol CH3CH2OH 79 propanol CH3CH2CH2OH 97 butanol CH3CH2CH2CH2OH 117 pentanol CH3CH2CH2CH2CH2OH 138 (a) One of the characteristics of …
Other Chemistry papers from May/June 2017
- 5070/11 Multiple choice
- 5070/12 Multiple choice
- 5070/21 Theory
- 5070/41 Alternative to Practical
- 5070/42 Alternative to Practical