Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/12 May/June 2012 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 2, May/June 2012: the question paper and its official mark scheme, 40 questions. Free to open, no account needed.
- Questions
- 40
- Marks
- –
File names: 5070_s12_qp_12 · 5070_s12_ms_12
Topics in this paper
Which syllabus chapters 5070/12 May/June 2012 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/12 May/June 2012
- Question 1
The diagram shows some of the changes of state. liquid solid gas …
- Question 2
Which gas is not obtained industrially by fractional distillation? A ammonia B argon C nitrogen D oxygen
- Question 3
When dilute hydrochloric acid is added to a white powder a gas is produced. The solution remaining is tested separately with small volumes of both aqueous ammonia and aqueous sodium hydroxide. A white precipitate is produced in both tests. What …
- Question 4
A mixture of two substances is spotted onto a piece of chromatography paper. The paper is inserted into a beaker containing a liquid. spot of mixture chromatography paper liquid beaker For separation of the substances to occur the spot of …
- Question 5
Which reagent could be used to distinguish between dilute nitric acid and dilute hydrochloric acid? A aqueous barium chloride B aqueous silver nitrate C aqueous sodium hydroxide D copper(II) carbonate
- Question 6
What is the structure of sand? A a macromolecule B an ionic lattice C a polymer D a simple molecule
- Question 7
Pentane, C5H12, has a higher boiling point than propane, C3H8. Which statement explains the difference in boiling point? A Carbon-carbon single bonds are stronger than carbon-hydrogen bonds. B Pentane has more covalent bonds to break. C Pentane does not burn …
- Question 8
In which set of apparatus will the bulb be least bright? …
- Question 9
Four substances have the following electrical properties. substance property W does not conduct under any conditions X conducts only in aqueous solution Y conducts in both the molten and solid states Z conducts in both the molten and aqueous states …
- Question 10
The energy profile diagram shows the pathways for a reaction with and without a catalyst. Which energy change is the activation energy for the catalysed reaction? reactants products …
- Question 11
Which statement about conduction of electricity is correct? A Electricity is conducted in aqueous solution by electrons. B Electricity is conducted in a metal wire by ions. C Electricity is conducted in a molten electrolyte by electrons. D Electricity is …
- Question 12
When the rubber bulb of the dropper in the diagram is squeezed, the aqueous silver nitrate drops into the aqueous sodium chloride and a white precipitate of silver chloride is formed. rubber bulb dropper silver nitrate(aq) sodium chloride(aq) What happens …
- Question 13
What has the same mass as 0.25 mol of copper atoms? A 0.5 mol of oxygen molecules B 1 mol of sulfur dioxide molecules C 1.5 mol of water molecules D 2 mol of oxygen atoms
- Question 14
Which change always takes place when an aqueous solution of copper(II) sulfate is electrolysed? A Copper is deposited at the negative electrode. B Oxygen is evolved at the positive electrode. C Sulfate ions move towards the negative electrode. D The …
- Question 15
Which substance will conduct electricity without being chemically changed? A sodium chloride solution B solid iron C solid sodium chloride D solid sulfur
- Question 16
A sample of air was bubbled into water. The pH of the water slowly changed from 7 to 6. Which gas in the sample caused this change? A carbon dioxide B carbon monoxide C nitrogen D oxygen
- Question 17
The oxide Q dissolves in water to form a colourless solution. This solution reacts with sodium carbonate to produce carbon dioxide. What is Q? A copper(II) oxide B sodium oxide C sulfur dioxide D zinc oxide
- Question 18
The following statements about dilute sulfuric acid are all correct. 1 Addition of Universal Indicator shows that the solution has a pH value of less than …
- Question 19
Which ion reacts with aqueous ammonia to give a precipitate that dissolves in an excess of ammonia? A Al 3+(aq) B Fe2+(aq) C Fe3+(aq) D Zn2+(aq)
- Question 20
Which element is most likely to be used as an industrial catalyst? A Li B Cs C Rh D Po
- Question 21
Which compound when reacted with sulfuric acid produces a product which is used as a fertiliser? A ammonia B calcium carbonate C calcium hydroxide D sodium hydroxide
- Question 22
In which reaction is the underlined substance behaving as an oxidising agent? A BaCl 2 + Na2SO4 → BaSO4 + 2NaCl B 3CuO + 2NH3 → 3Cu …
- Question 23
Which statements are true about all the noble gases? 1 The number of protons in their atoms equals the number of neutrons. 2 The number of protons in their atoms does not equal the number of electrons. 3 They all …
- Question 24
How many electrons and protons are in an ion of an element in Group 2 of the Periodic Table? Number of electrons Number of protons …
- Question 25
A metal X forms oxides with the formulae XO and X2O3. Where is X in the Periodic Table? A in Group II B in Group III C the second Period D in the transition elements
- Question 26
What is a characteristic of a weak acid? A It does not react with sodium carbonate. B It forms an aqueous solution with a pH of 8. C It is only partially ionised when added to water. D It turns …
- Question 27
The reaction scheme represents the process for obtaining pure silicon. SiO2 heat with carbon I Si (impure) II react with chlorine SiCl 4 (impure) III SiCl 4 (pure) heat with hydrogen IV Si (pure) distil In which of the stages …
- Question 28
Which metal can be obtained from its oxide using hydrogen? A calcium B copper C magnesium D zinc
- Question 29
Which substance undergoes decomposition because of the high temperature in the blast furnace? A coke B calcium carbonate C calcium silicate D slag
- Question 30
Which reaction occurring in the blast furnace is an acid base reaction? …
- Question 31
Three different beakers are set up as shown. rod of metal Z aqueous metal W salt 1 rod of metal W aqueous metal X salt 2 rod of metal X aqueous metal Y salt 3 In beaker 1 metal W …
- Question 32
Aluminium is manufactured by the electrolysis of aluminium oxide. Which substances are formed at the electrodes? positive electrode negative electrode A aluminium carbon dioxide B aluminium oxygen C carbon dioxide aluminium D oxygen carbon dioxide
- Question 33
The processes photosynthesis, respiration and fermentation all change the amount of carbon dioxide in the atmosphere. Which processes increase the amount of carbon dioxide in the atmosphere? A photosynthesis and fermentation B photosynthesis only C respiration and fermentation D respiration …
- Question 34
Which process would destroy the bacteria in water? A chlorination B desalination C filtration D treatment with carbon
- Question 35
Which compound has more than two carbon atoms per molecule? A ethanoic acid B ethanol C ethene D ethyl ethanoate
- Question 36
The equations show some reactions of organic compounds. Which is an addition reaction? A CH4 + Br2 → CH3Br + HBr B C2H5OH …
- Question 37
Which statement about methanol is correct? A It can be oxidised to form methanoic acid. B It is a constituent of alcoholic drinks. C It is formed by fermentation. D Its fully displayed structural formula is …
- Question 38
A 10 cm3 sample of a gaseous hydrocarbon is completely burnt in oxygen. The total volume of the products is 70 cm3. All gas volumes are measured at room temperature and pressure. Which equation represents the combustion of the hydrocarbon? …
- Question 39
One mole of magnesium is dissolved in excess aqueous ethanoic acid, CH3COOH. How many moles of hydrogen, H2, will be produced? …
- Question 40
The section of a polymer chain is shown. …
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