Cambridge O Level · 5070 · Paper 2 · Theory
Chemistry 5070/22 May/June 2016 past paper
Cambridge O Level Chemistry (5070) Paper 2 (Theory), variant 2, May/June 2016: 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
- 51
File names: 5070_s16_qp_22 · 5070_s16_ms_22
Grade thresholds for 5070/22 May/June 2016
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 |
|---|---|---|---|---|
| 51 | 37 | 23 | 18 | 12 |
Topics in this paper
Which syllabus chapters 5070/22 May/June 2016 tested, by marks. Each chapter links to every past-paper question on it.
| Chapter | Questions | Marks |
|---|---|---|
| Organic chemistry | 3 | 21 |
| Acids, bases and salts | 2 | 20 |
| Chemical reactions | 2 | 17 |
| Chemistry of the environment | 1 | 10 |
| Stoichiometry | 1 | 10 |
| Experimental techniques and chemical analysis | 1 | 7 |
Questions in 5070/22 May/June 2016
- Question 1
A1 Choose from the following polymers to answer the questions. …
- Question 2
A2 Hydrogen fluoride, HF, has a simple molecular structure. It is soluble in water. (a) Suggest one other physical property of hydrogen fluoride. (b) Hydrogen fluoride dissociates in water to form dilute hydrofluoric acid. (i) Write an equation to show …
- Question 3
A3 Esters are used as food flavourings and solvents. (a) Draw the structure of ethyl methanoate, showing all of the atoms and all of the bonds. (b) Ethyl ethanoate evaporates at room temperature. (i) What is meant by the term …
- Question 4
A4 Sulfuric acid is manufactured by the contact process. (a) State the conditions used in the contact process. temperature pressure catalyst (b) In the contact process, sulfur dioxide reacts with oxygen. 2SO2(g) + O2(g) 2SO3(g) Describe and explain the effect …
- Question 5
A5 The statements give some of the chemical properties of cobalt and its compounds. • Cobalt does not react with cold water. • Cobalt fizzes slowly with dilute hydrochloric acid. • Cobalt does not react with aqueous zinc nitrate. • …
- Question 6
A6 River water contains dissolved minerals and gases. (a) Carbon dioxide is one of the gases dissolved in river water. Draw the ‘dot-and-cross’ diagram to show the bonding in a molecule of carbon dioxide. Only draw the outer-shell electrons. (b) …
- Question 7
B7 The formula of lead(II) nitrate is Pb(NO3)2. (a) Describe how a pure sample of lead(II) nitrate crystals can be prepared from lead(II) oxide, which is insoluble in water. (b) Aqueous potassium iodide is added to a sample of aqueous …
- Question 8
B8 Cyclohexene, C6H10, is a cycloalkene. Cycloalkenes react in a similar way to alkenes. …
- Question 9
B9 Carbon monoxide reacts with hydrogen in a reversible reaction. CO(g) + 2H2(g) CH3OH(g) …
- Question 10
B10 Manganese(IV) oxide, MnO2, can be used in the preparation of both chlorine and oxygen. Reaction 1 MnO2(s) + 4HCl(aq) Cl2(g) …
Other Chemistry papers from May/June 2016
- 5070/11 Multiple choice
- 5070/12 Multiple choice
- 5070/21 Theory
- 5070/41 Alternative to Practical
- 5070/42 Alternative to Practical