Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/12 Oct/Nov 2013 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 2, Oct/Nov 2013: the question paper and its official mark scheme, 40 questions. Free to open, no account needed.
- Questions
- 40
- Marks
- –
File names: 5070_w13_qp_12 · 5070_w13_ms_12
Topics in this paper
Which syllabus chapters 5070/12 Oct/Nov 2013 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/12 Oct/Nov 2013
- Question 1
When drops of bromine are placed on a table-top at one side of a room, the smell of bromine can eventually be detected at the other side of the room. What is not part of the explanation of this? After …
- Question 2
Which elements exist as diatomic molecules at room temperature? A hydrogen, oxygen, helium B nitrogen, chlorine, neon C nitrogen, oxygen, fluorine D oxygen, chlorine, helium
- Question 3
The diagram shows the fractionation of crude oil. crude oil fraction …
- Question 4
The apparatus shown is used to distil a dilute solution of ethanol in water. [B.P.: ethanol, 78 °C; water 100 °C] heat boiling flask fractionating column thermometer water in water out mixture of ethanol and water Which graph shows the …
- Question 5
The diagram shows the electrolysis of aqueous sodium chloride and of molten sodium chloride. copper wire aqueous sodium chloride molten sodium chloride graphite electrodes Which substance in the diagram has both positive ions and mobile electrons? A aqueous sodium chloride …
- Question 6
Substance X has a simple molecular structure and substance Y has a giant molecular structure. Which row is correct? X could be Y could be A an element only an element only B an element only an element or a …
- Question 7
The table gives some of the properties of four substances. Which substance could be hydrogen chloride? ability to conduct electricity melting point / °C boiling point / °C when liquid in aqueous solution …
- Question 8
Aqueous silver nitrate is added to separate solutions of potassium chloride and sodium iodide. What are the colours of the precipitates formed? colour of precipitate formed with chloride colour of precipitate formed with iodide A white white B white yellow …
- Question 9
The diagram shows the structure of an ionic compound. What is a possible formula for this compound? A CaF2 B NaCl C SO2 D MgO
- Question 10
18 g of water contains the same number of molecules as …
- Question 11
The complete combustion of 20 cm3 of a gaseous alkane, X, requires 130 cm3 of oxygen. Both volumes were measured at r.t.p.. What could be the identity of X? A butane B ethane C methane D propane
- Question 12
Which process will separate an ionic compound PQ into its elements P and Q? A distillation B electrolysis C filtration D precipitation
- Question 13
Which statement describes the conversion of magnesium atoms to magnesium ions? A The change is reduction, because there has been a gain of electrons. B The change is oxidation, because there has been a loss of electrons. C The change …
- Question 14
Which arrangement would be used to electroplate copper onto a steel key? electrolyte anode (positive electrode) cathode (negative electrode) A aqueous copper(II) sulfate piece of pure copper steel key B aqueous copper(II) sulfate steel key piece of pure copper C …
- Question 15
Sodium hydrogencarbonate decomposes on heating. 2NaHCO3 → Na2CO3 …
- Question 16
It has been suggested that the cars of the future could be powered by fuel cells. One type of fuel cell uses the chemical reaction between oxygen and hydrogen to produce electricity. What would be a disadvantage of using this …
- Question 17
Sulfur and selenium, Se, are in the same group of the Periodic Table. From this, we would expect selenium to form compounds having the formulae A Se2O, Na2Se and NaSeO4. B SeO2, Na2Se and NaSeO4. C SeO2, Na2Se and Na2SeO4. …
- Question 18
When the product of a reaction between two gases is added to water, a solution of pH7 is formed. Which could be these gases? A hydrogen and chlorine B hydrogen and nitrogen C hydrogen and oxygen D oxygen and carbon …
- Question 19
The energy diagram for the reaction between aqueous sodium hydroxide and dilute hydrochloric acid is shown. H+(aq) + OH–(aq) H2O(l) energy progress of reaction …
- Question 20
Which change will not increase the rate of a chemical reaction? A an increase in concentration of aqueous reactants B an increase in pressure of gaseous reactants C an increase in temperature of a reaction system D an increase in …
- Question 21
The metals iron, lead and zinc can be manufactured by the reduction of their oxides with coke. What is the correct order of the ease of reduction of the metal oxides? oxides become more difficult to reduce A iron → …
- Question 22
The following stages happen during eutrophication. 1 increase in growth of algae 2 increase in nitrate concentration 3 death of aquatic plants 4 decrease in dissolved oxygen In which order do these stages occur? …
- Question 23
The equation shows that mixtures of hydrogen gas and iodine vapour can reach dynamic equilibrium. …
- Question 24
Aluminium is manufactured by the electrolysis of molten aluminium oxide. Which gas is not formed during this process? A carbon dioxide B carbon monoxide C oxygen D sulfur dioxide
- Question 25
Which equation represents a redox reaction? A 4CuO + CH4 → 4Cu …
- Question 26
What is the percentage, by mass, of nitrogen in the fertiliser (NH4)3PO4? [Ar: …
- Question 27
In the Contact process for the manufacture of sulfuric acid, the most important reaction occurs in the catalyst chamber. Which set of reactants and catalyst for this reaction is correct? reactants catalyst A sulfur and oxygen vanadium(V) oxide B sulfur …
- Question 28
Which compound is formed by a method involving precipitation? A NaCl B K2SO4 C Ca(NO3)2 D PbSO4
- Question 29
Ionic compounds have high melting points because of the strong attraction between oppositely charged ions. Which compound has the lowest melting point? A (Al 3+)2(O2–)3 B Mg2+O2– C Na+Cl – D (Fe3+)2(O2–)3
- Question 30
In which row are the elements placed in the correct order of their chemical reactivity, starting with the most reactive element? most reactive least reactive A calcium magnesium silver B magnesium calcium silver C silver calcium magnesium D silver magnesium …
- Question 31
The diagram shows the apparatus needed to extract aluminium from aluminium oxide. carbon electrodes electrolyte aluminium Which statement about this process is correct? A The electrolyte is a solid mixture of aluminium oxide and cryolite. B The electrolyte is aluminium …
- Question 32
Graphite shares some properties with metals. Which property of graphite is not one of the general properties of metals? A Graphite forms a gaseous oxide. B Graphite has a high melting point. C Graphite is a conductor of electricity. D …
- Question 33
Which metallic element, represented by X, has the following characteristics? ● It can be prevented from corroding by attaching a piece of magnesium to it. ● Two of its oxides have the formulae XO and X2O3. ● It has the …
- Question 34
Which pair of gases are both non-acidic? A ammonia and methane B carbon dioxide and ammonia C methane and nitrogen dioxide D nitrogen dioxide and carbon dioxide
- Question 35
Both nylon and the proteins found in egg yolk are polymers. Which statement about nylon and these proteins is correct? A They are both naturally occurring macromolecules. B They are both polyamides. C They both possess the O linkage. D …
- Question 36
An organic compound has an empirical formula C2H4O. What could the compound be? A butanoic acid B butanol C ethanoic acid D ethanol
- Question 37
Which diagram shows the structure of the monomer of poly(propene)? …
- Question 38
Alkanes are saturated compounds containing carbon and hydrogen only. Structures …
- Question 39
Which pair of compounds are both esters and are isomers of each other? A HCO2CH3 and CH3CO2H B CH3CO2CH3 and C2H5CO2H C CH3CO2C2H5 and C2H5CO2CH3 D C3H7CO2CH3 and CH3CO2C2H5
- Question 40
The diagram shows the partial structures of two different polymers. …
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