Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/11 May/June 2015 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 1, May/June 2015: 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
- 32
File names: 5070_s15_qp_11 · 5070_s15_ms_11
Grade thresholds for 5070/11 May/June 2015
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 |
|---|---|---|---|---|
| 32 | 25 | 20 | 17 | 15 |
Topics in this paper
Which syllabus chapters 5070/11 May/June 2015 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/11 May/June 2015
- Question 1
The fractional distillation apparatus shown is being used to separate a mixture of two liquids. A thermometer is missing from the apparatus. Where should the bulb of the thermometer be placed? heat cold water in water out …
- Question 2
The table shows the results of two reactions of an aqueous solution of a salt. reagents final observation excess aqueous sodium hydroxide white precipitate dilute nitric acid and aqueous silver nitrate yellow precipitate What is the name of the salt? …
- Question 3
Limestone reacts with hydrochloric acid. Changing which reaction condition does not affect the rate of reaction? A concentration of the acid B limestone particle size C pressure D temperature
- Question 4
A particle contains 34 protons, 45 neutrons and 36 electrons. Which symbol is correct for this particle? A Se …
- Question 5
Which molecule contains three shared pairs of electrons between two of its atoms? A CO2 …
- Question 6
What happens when sodium chloride melts? A Covalent bonds in a giant lattice are broken. B Electrons are released from atoms. C Electrostatic forces of attraction between ions are overcome. D Molecules are separated into ions.
- Question 7
Which compound contains only eight covalent bonds? CH2OH CH2OH A CH2OH CH3 B COOH COOH C COOH CH2OH D
- Question 8
Which substance has metallic bonding? conducts electricity state of product formed on reaction with oxygen when solid when liquid …
- Question 9
A gas cylinder is placed in each of the four corners of a square room. Each cylinder contains a different gas stored under the same pressure. The gases are released at exactly the same time. Which gas will reach the …
- Question 10
Powdered calcium carbonate reacts with dilute hydrochloric acid to produce calcium chloride, water and carbon dioxide. Which is the correct ionic equation, including state symbols, for this reaction? A CaCO3(s) + 2HCl (aq) → CaCl 2(aq) …
- Question 11
What is the relative molecular mass, Mr, of CuSO4.5H2O? …
- Question 12
1.00 dm3 of ammonia gas is passed over heated copper(II) oxide. 3CuO(s) + 2NH3(g) → 3Cu(s) …
- Question 13
What are the correct anode (positive electrode) and cathode (negative electrode) products when aqueous copper(II) sulfate is electrolysed using copper electrodes? anode product cathode product A aqueous copper(II) ions copper metal B aqueous copper(II) ions hydrogen gas C oxygen gas …
- Question 14
Concentrated aqueous sodium chloride is electrolysed using inert electrodes. concentrated aqueous sodium chloride inert electrode inert electrode +ve –ve Which statement about this electrolysis is correct? A Chloride ions travel through the solution to the negative electrode. B Electrons travel …
- Question 15
The diagram shows the energy profile of a chemical reaction. Two energy changes are labelled X and Y. products reactants energy reaction pathway Y X Which statement about the reaction is correct? A The activation energy of the reaction is …
- Question 16
In the graph, curve 1 was obtained by observing the decomposition of 100 cm3 of 1.0 mol / dm3 hydrogen peroxide solution, catalysed by manganese(IV) oxide. …
- Question 17
The equation shows a redox reaction between iron(II) chloride and chlorine gas. 2FeCl 2 + Cl 2 → 2FeCl 3 Which equation describes the reduction process in this reaction? A 2Cl – → Cl …
- Question 18
Which row correctly describes the oxides? Al 2O3 K2O MgO SO2 A basic acidic acidic amphoteric B acidic basic amphoteric acidic C amphoteric basic amphoteric acidic D amphoteric basic basic acidic
- Question 19
Which substance is insoluble in water? A ammonium carbonate B ammonium nitrate C calcium carbonate D calcium nitrate
- Question 20
In which of these equilibria is the forward reaction favoured by an increase in pressure? A 2HI(g) …
- Question 21
The Contact process, the Haber process and the hydrogenation of fats all involve the use of a catalyst. Which row correctly describes whether the catalyst used in each process is an element or a compound? Contact process Haber process hydrogenation …
- Question 22
Which element is sodium? melting point in °C electrical conduction density in g / cm3 A 1535 good …
- Question 23
A non-metal element forms oxides of the type XO2 and XO3. What is X? A aluminium B carbon C hydrogen D sulfur
- Question 24
Aluminium reacts with chromium(III) oxide as shown. aluminium + chromium(III) oxide → chromium + aluminium oxide Which statements are correct? 1 Aluminium is more reactive than chromium. 2 A similar reaction would also take place between aluminium and iron(III) oxide. …
- Question 25
Using the Periodic Table for the relative atomic masses, which has the least mass? A 0.1 moles of silicon dioxide, SiO2 B 0.5 moles of oxygen, …
- Question 26
The diagram shows how an underwater iron pipe can be protected from rusting. metal Z iron pipe water Metal Z can be 1 because it is 2 reactive than iron. Which words correctly complete gaps 1 and …
- Question 27
Brass is an alloy. Which statement about brass is correct? A It contains a sea of electrons. B It contains positive and negative ions which are free to move. C It is a compound of a metal and a non-metal. …
- Question 28
Which item is made from mild steel? A a car body B a container to store gas in a chemical plant C a scalpel for use in an operating theatre D a set of cutlery
- Question 29
The table shows the composition of exhaust gases from an internal combustion engine. gas % of the gas in the exhaust fumes gas Y 71 carbon dioxide 14 water vapour 13 carbon monoxide 1 hydrocarbons 0.3 nitrogen oxides 0.2 sulfur …
- Question 30
Which two gases do not damage limestone buildings? A nitrogen and carbon monoxide B nitrogen dioxide and carbon monoxide C nitrogen dioxide and carbon dioxide D sulfur dioxide and carbon dioxide
- Question 31
Iron(III) oxide can be reduced to iron by carbon. Which other element can reduce iron(III) oxide to iron? A copper B lead C magnesium D silver
- Question 32
An ammonium salt was added to excess hot aqueous sodium hydroxide. Ammonia gas was evolved. When no more ammonia was evolved, aluminium was added to the solution remaining and more ammonia gas was given off. What was the ammonium salt? …
- Question 33
Two esters have the same molecular formula, C3H6O2. What are the names of these two esters? 1 methyl ethanoate 2 ethyl propanoate 3 ethyl methanoate 4 propyl methanoate A 1 and …
- Question 34
Which statement is correct? A Carboxylic acids contain the functional group …
- Question 35
When cracked, one mole of a compound, X, produces one mole of propene and one mole of hydrogen. …
- Question 36
Which is a correct definition of isomers? A atoms with the same relative atomic mass and different structures B compounds with the same molecular formula and different structures C compounds with the same molecular mass and different structures D elements …
- Question 37
Which of the following has not been prepared by reacting a carboxylic acid with an alcohol? …
- Question 38
Which of these polymers is a protein? A (C2H3Cl …
- Question 39
In the addition polymer poly(propene), what is the simplest ratio of carbon atoms to hydrogen atoms? carbon atoms hydrogen atoms …
- Question 40
Which statement about vegetable oil and the margarine made from it is correct? A Both are liquids at room temperature. B Both occur naturally. C Margarine has the higher melting point. D Vegetable oil has fewer carbon-carbon double bonds than …
Other Chemistry papers from May/June 2015
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