Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/12 May/June 2014 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 2, May/June 2014: the question paper and its official mark scheme, 40 questions, with the grade thresholds. Free to open, no account needed.
- Questions
- 40
- Marks
- 40
- Grade A from
- 29
File names: 5070_s14_qp_12 · 5070_s14_ms_12
Grade thresholds for 5070/12 May/June 2014
The minimum raw marks Cambridge set for each grade on this component (out of 40). Thresholds change every session and variant, so always compare your score with the paper you actually sat.
| A | B | C | D | E |
|---|---|---|---|---|
| 29 | 22 | 17 | 15 | 13 |
Topics in this paper
Which syllabus chapters 5070/12 May/June 2014 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/12 May/June 2014
- Question 1
Which process is suitable for obtaining the water from an aqueous solution of sugar? A crystallisation B distillation C filtration D use of a separating funnel
- Question 2
Sulfur dioxide and oxygen react together. 2SO2(g) + O2(g) 2SO3(g) …
- Question 3
The scheme shows a sequence of reactions starting from compound Y. compound Y excess HNO3(aq) + gas colourless solution white precipitate insoluble in excess NaOH(aq) NaOH(aq) What could the compound Y be? A aluminium sulfate B calcium carbonate C copper(II) …
- Question 4
The apparatus shown can be used to find the rate of some chemical reactions. The rate of which reaction can be followed using this apparatus? A AgNO3 + KI B Mg + HCl C NaOH + CuSO4 D NaOH + …
- Question 5
Crude oil is fractionally distilled in a fractionating column. The positions at which fractions X and Y are collected are shown. crude oil fractions X Y Which statement is correct? A The temperature increases up the column. B X condenses …
- Question 6
An ion X + has 23 nucleons and 10 electrons. What does the nucleus of X contain? protons neutrons …
- Question 7
Which element exists as a macromolecule? A carbon B hydrogen C oxygen D sodium
- Question 8
Which substance can conduct electricity by the movement of ions? A copper B graphite C mercury D sodium chloride
- Question 9
The diagram shows the molecule ethyl propanoate. …
- Question 10
Sodium and magnesium are next to each other in the Periodic Table. melting point / °C boiling point / °C Na 98 883 Mg 649 1103 Which statement explains the differences in the melting and boiling points of these elements? …
- Question 11
Sulfuric acid and potassium hydroxide can react together to form potassium hydrogensulfate, KHSO4, and water only. Which amounts of the reactants are required? A equal masses of sulfuric acid and potassium hydroxide B equal numbers of moles of sulfuric acid …
- Question 12
The diagram shows the structures of the atoms of elements L and …
- Question 13
A concentrated aqueous solution of sodium chloride is electrolysed. What are the equations for the reactions taking place at the cathode (negative electrode) and the anode (positive electrode)? cathode (–ve) anode (+ve) …
- Question 14
What is observed during the electrolysis of aqueous copper(II) sulfate using carbon electrodes? A A pink solid is deposited on the anode. B Bubbles form on the negative electrode. C The colour of the solution fades. D The negative electrode …
- Question 15
Nitrogen monoxide is an atmospheric pollutant that is formed in car engines by the reaction between nitrogen and oxygen. …
- Question 16
Which substance does not react with hydrochloric acid? A zinc carbonate B zinc hydroxide C zinc metal D zinc nitrate
- Question 17
The table shows the energy released by the complete combustion of some compounds used as fuels. compound formula Mr ∆H in kJ / mol benzene …
- Question 18
In which circuit does the bulb light? CuSO4(aq) Cu Cu NaCl (s) Ag Zn C2H5OH(l) Cu Zn H2SO4(aq) Ag Cu key = bulb …
- Question 19
Ammonia is made by a reversible reaction between nitrogen and hydrogen. …
- Question 20
Which change involves reduction? A calcium carbonate to calcium oxide B copper to brass C ethene to poly(ethene) D sand to silicon
- Question 21
Samples of three oxides, X, Y and Z, were added separately to dilute hydrochloric acid and to dilute sodium hydroxide. X and Y react with dilute hydrochloric acid but Z does not react. Y and Z react with aqueous sodium …
- Question 22
Which process does not involve the use of a transition element? A the manufacture of margarine from vegetable oil B the manufacture of sulfuric acid in the Contact process C the purification of river water to produce drinking water D …
- Question 23
Element Q is in Period 3 of the Periodic Table. It can form ions with the formula Q3–. Which element is most likely to be Q? A aluminium B arsenic C phosphorus D sulfur
- Question 24
Which property would all the hydrogen compounds of the Group VII elements possess? A be covalent B be solids at room temperature C form alkaline aqueous solutions D conduct electricity when molten
- Question 25
A student mixed together aqueous solutions of Y and Z. A white precipitate formed. Which could not be Y and …
- Question 26
Aluminium is extracted from its molten oxide ore by electrolysis whereas zinc is extracted by reduction of its oxide when heated with coke. Which statement explains this? A Aluminium is very high in the reactivity series. B Aluminium ores are …
- Question 27
In which solid can layers of atoms slide over each other? A diamond B graphite C haematite D silica
- Question 28
Which ion causes the acidity in dilute hydrochloric acid? A Cl …
- Question 29
Which metal can react rapidly with steam but reacts only very slowly with cold water? A calcium B copper C iron D potassium
- Question 30
Which gas turns moist blue litmus paper red and produces a precipitate when bubbled through calcium hydroxide solution? A CO B CO2 C HCl D NH3
- Question 31
The diagram shows three steps in the manufacture of sulfuric acid. sulfur sulfur dioxide sulfur trioxide step P step Q step R sulfuric acid In which steps is a catalyst used? A step Q only B step R only C …
- Question 32
Which property of compounds in a homologous series is correct? A They all have the same general formula. B They all have the same molecular formula. C They all have the same number of isomers. D They all have the …
- Question 33
Which compound, on combustion, never forms carbon? A carbon monoxide B ethanol C ethene D methane
- Question 34
Which process is an example of cracking? …
- Question 35
A hydride is a compound containing only two elements, one of which is hydrogen. Which element can form the greatest number of different hydrides? A carbon B chlorine C nitrogen D oxygen
- Question 36
A liquid reacts with each of sodium carbonate, potassium hydroxide and ethanol. What is the liquid? A aqueous ammonia B ethanoic acid C ethyl ethanoate D sodium hydroxide
- Question 37
Compound X and compound Y combine to form a polymer. HOOC COOH compound X H2N NH2 compound Y Which of the statements about the polymer and its formation is not correct? A Ammonia is formed during the production of the …
- Question 38
The structural formulae of some organic compounds are shown below. …
- Question 39
What is the partial structure of the polymer formed by the polymerisation of propene, CH3CH=CH2? …
- Question 40
When a volcano erupts, which gas is produced in significant amounts? A carbon monoxide B methane C ozone D sulfur dioxide Group 140 Ce Cerium 58 141 Pr Praseodymium 59 144 Nd Neodymium 60 Pm Promethium 61 150 Sm Samarium …
Other Chemistry papers from May/June 2014
- 5070/11 Multiple choice
- 5070/21 Theory
- 5070/22 Theory
- 5070/41 Alternative to Practical
- 5070/42 Alternative to Practical