Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/12 May/June 2011 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 2, May/June 2011: the question paper and its official mark scheme, 40 questions. Free to open, no account needed.
- Questions
- 40
- Marks
- –
File names: 5070_s11_qp_12 · 5070_s11_ms_12
Topics in this paper
Which syllabus chapters 5070/12 May/June 2011 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/12 May/June 2011
- Question 1
A drop of liquid bromine is placed in the bottom of a gas jar. Brown fumes of bromine vapour slowly spread through the covered gas jar. Why does this happen? A Bromine vapour is less dense than air. B Bromine …
- Question 2
Copper(II) sulfate crystals are separated from sand using the four processes listed below. In which order are these processes used? 1st 2nd 3rd 4th A filtering dissolving crystallising evaporating B filtering dissolving evaporating crystallising C dissolving evaporating filtering crystallising D …
- Question 3
The diagrams show an experiment with aqueous ammonium chloride. solution X mixture aqueous ammonium chloride poured in heat moist litmus paper A gas, Y, is produced and the litmus paper changes colour. What are solution X and gas Y? solution …
- Question 4
A student tested a solution by adding aqueous sodium hydroxide. A precipitate was not seen because the reagent was added too quickly. What could not have been present in the solution? A Al 3+ B Ca2+ C NH4 + D …
- Question 5
In which of the following is there a lattice of positive ions in a ‘sea of electrons’? A liquid potassium chloride B sand C solid graphite D solid magnesium
- Question 6
What is the mass of oxygen contained in 72 g of pure water? [Relative atomic masses: …
- Question 7
A covalent bond is formed by A electron sharing between metals and non-metals. B electron sharing between non-metals. C electron transfer between non-metals. D electron transfer from metals to non-metals.
- Question 8
Which molecule has the largest number of electrons involved in covalent bonds? …
- Question 9
The equation for the reaction between calcium carbonate and hydrochloric acid is shown. CaCO3(s) + 2HCl (aq) → CaCl 2(aq) …
- Question 10
Element X has the electronic structure 2,8,5. Element Y has the electronic structure 2,8,7. What is the likely formula of a compound containing only X and Y? A XY3 …
- Question 11
The empirical formula of a liquid compound is C2H4O. To find the empirical formula, it is necessary to know the A density of the compound. B percentage composition of the compound. C relative molecular mass of the compound. D volume …
- Question 12
Which statement about both chlorine atoms and chloride ions is correct? A They are chemically identical. B They are isotopes of chlorine. C They have the same number of protons. D They have the same physical properties.
- Question 13
The diagram shows the electrolysis of molten lead(II) bromide using inert electrodes. heat molten lead(II) bromide silvery metal brown gas + – What happens during this electrolysis? A Atoms change to ions. B Covalent bonds are broken. C Ions change …
- Question 14
The energy profile diagram for the reaction between hydrogen and chlorine is shown. energy reaction pathway H2 + Cl 2 reactants products 2HCl What information about this reaction does the diagram show? type of reaction sign of enthalpy change, ∆H …
- Question 15
Which pair of metals X and Y will produce the highest voltage when used as electrodes in a simple cell? porous membrane V metal Y in a solution of a salt of Y metal X in a solution of a …
- Question 16
The equation shows what happens in 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 17
Which acid and base react together to produce an insoluble salt? A hydrochloric acid and sodium hydroxide B nitric acid and calcium oxide C sulfuric acid and barium hydroxide D sulfuric acid and zinc oxide
- Question 18
Carbon and silicon are both in Group IV of the Periodic Table. Which statement is correct for both carbon dioxide and silicon dioxide? A They are acidic oxides. B They are readily soluble in water. C They contain ionic bonds. …
- Question 19
The following changes could be made to the conditions in the reaction between zinc and hydrochloric acid. 1 increase in concentration of the acid 2 increase in particle size of the zinc 3 increase in pressure on the system 4 …
- Question 20
Which calcium compound does not increase the pH of acidic soils? A calcium carbonate B calcium hydroxide C calcium oxide D calcium sulfate
- Question 21
A solution of fertiliser was tested as shown. fertiliser solution add excess aqueous sodium hydroxide solution warm the mixture moist red litmus paper turns blue green precipitate forms Which ions must be present in the fertiliser? A Fe2+ and SO4 …
- Question 22
Which pair of properties are both correct for a typical transition element? property 1 property 2 A forms coloured compounds soluble in water B high density has variable oxidation states C low density high melting point D low melting point …
- Question 23
What happens when zinc foil is placed in an aqueous solution of copper(II) sulfate? A Copper(II) ions are oxidised. B There is no reaction. C Zinc atoms are oxidised. D Zinc sulfate is precipitated.
- Question 24
Which deduction about the element astatine, At, can be made from its position in Group VII? A It forms covalent compounds with sodium. B It is a gas. C It is displaced from aqueous potassium astatide, KAt, by chlorine. D …
- Question 25
In the apparatus shown, gas P is passed over solid …
- Question 26
The diagram represents the manufacture of sulfuric acid by the Contact process. sulfur sulfur dioxide sulfur trioxide sulfuric acid R What is used in step R? A concentrated sulfuric acid followed by water B vanadium(V) oxide C water followed by …
- Question 27
Aluminium is higher than copper in the reactivity series so the following displacement reaction should be feasible. 2Al (s) + 3CuSO4(aq) → Al 2(SO4)3(aq) + 3Cu(s) The reaction does not take place at room temperature. What is the reason for …
- Question 28
Scrap iron is often recycled. Which reason for recycling is not correct? A It reduces the amount of pollution at the site of the ore extraction. B It reduces the amount of waste taken to landfill sites. C It reduces …
- Question 29
The gases coming from a car’s exhaust contain oxides of nitrogen. How are these oxides formed? A Nitrogen reacts with carbon dioxide. B Nitrogen reacts with carbon monoxide. C Nitrogen reacts with oxygen. D Nitrogen reacts with petrol.
- Question 30
Which element can only be extracted from its ore using electrolysis? A calcium B copper C lead D silver
- Question 31
Which diagram represents the structure of an alloy? …
- Question 32
When a volcano erupts, which gas is produced in significant amounts? A carbon monoxide B chlorofluorocarbons C methane D sulfur dioxide
- Question 33
Useful fractions are obtained by the fractional distillation of petroleum. Which fraction is matched by its use? fraction use A bitumen fuel in cars B lubricating oils for making waxes and polishes C paraffin (kerosene) for making roads D petrol …
- Question 34
Compounds X and Y are both alkanes. Compound X has a higher boiling point than compound Y. What could be the formulae of compounds X and Y? compound X compound …
- Question 35
Compound X is a hydrocarbon. It reacts with steam to form an alcohol. Which type of compound is X and what would be its effect on bromine water? type of compound effect on bromine water A alkane turns from brown …
- Question 36
Which bond is present in both nylon and Terylene? …
- Question 37
With which substance will ethene react to form more than one product? A bromine B hydrogen C oxygen D steam
- Question 38
Four hydrocarbon structures are shown. …
- Question 39
When a compound X is reacted with sodium carbonate, carbon dioxide gas is evolved. What could be the formula of compound X? A C2H5CO2CH3 B C3H7CO2H C CH3CO2C2H5 D C4H9OH
- Question 40
Which statement about ethanoic acid is correct? A It contains three carbon atoms per molecule. B It contains five hydrogen atoms per molecule. C It is insoluble in water. D It reacts with ethanol to form a sweet-smelling compound. Group …
Other Chemistry papers from May/June 2011
- 5070/11 Multiple choice
- 5070/21 Theory
- 5070/22 Theory
- 5070/41 Alternative to Practical
- 5070/42 Alternative to Practical