Cambridge O Level · 5070 · Paper 1 · Multiple choice
Chemistry 5070/12 May/June 2010 past paper
Cambridge O Level Chemistry (5070) Paper 1 (Multiple choice), variant 2, May/June 2010: the question paper and its official mark scheme, 40 questions. Free to open, no account needed.
- Questions
- 40
- Marks
- –
File names: 5070_s10_qp_12 · 5070_s10_ms_12
Topics in this paper
Which syllabus chapters 5070/12 May/June 2010 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 5070/12 May/June 2010
- Question 1
The diagram shows a simple laboratory apparatus for the preparation and collection of a dry gas. anhydrous calcium chloride What is the gas? A carbon dioxide B chlorine C hydrogen D hydrogen chloride
- Question 2
What correctly describes the molecules in very dilute sugar solution at room temperature? sugar molecules water molecules A close together, moving at random close together, moving at random B widely separated, moving at random close together, moving at random C …
- Question 3
A mixture containing equal volumes of two liquids that mix completely but do not react together is placed in the apparatus shown and heated until the thermometer first shows a steady reading. At which position will there be the highest …
- Question 4
Which is an anion that is present in the solution formed when an excess of dilute hydrochloric acid is added to calcium carbonate? A Ca2+ B Cl …
- Question 5
Which graph shows the number of electrons in the outer shell of an atom, plotted against the proton (atomic) number for the first ten elements in the Periodic Table? …
- Question 6
A metal consists of a lattice of positive ions in a ‘sea of electrons’. What changes, if any, take place to the electrons and positive ions in a metal wire when an electric current is passed through it? electrons positive …
- Question 7
Which pair of elements, when combined together, do not form a covalent compound? A caesium and fluorine B nitrogen and chlorine C phosphorus and fluorine D sulfur and chlorine
- Question 8
The diagram shows the structure of a covalent compound containing the element hydrogen, H, and the unknown elements X, Y and …
- Question 9
Two different hydrocarbons each contain the same percentage by mass of hydrogen. It follows that they have the same A empirical formula. B number of isomers. C relative molecular mass. D structural formula.
- Question 10
What is the mass of one mole of carbon-12? …
- Question 11
The diagram shows the electrolysis of a concentrated aqueous solution containing both copper(II) ions and sodium ions. solution Which metal is deposited at the negative electrode and why? metal deposited reason A copper copper is less reactive than sodium B …
- Question 12
The diagram shows the apparatus used to electrolyse lead(II) bromide using inert electrodes. lamp lead(II) bromide Why does the lamp light up only when the lead(II) bromide is melted? A Bromine atoms in the lead(II) bromide are converted to ions …
- Question 13
When a solution containing silver ions is added to a solution containing iron(II) ions, an equilibrium is set up. Ag+(aq) + Fe2+(aq) Ag(s) + Fe3+(aq) The addition of which substance would not affect the amount of silver precipitated? A Ag+(aq) …
- Question 14
Which reaction does not involve either oxidation or reduction? A CH4(g) …
- Question 15
A student performs two reactions. reaction …
- Question 16
Which statement about catalysts is correct for a typical equilibrium reaction? A A catalyst can be either an inorganic or an organic species. B A catalyst does not take part in the reaction. C A catalyst only speeds up the …
- Question 17
Which pair of compounds could be used in the preparation of calcium sulfate? A calcium carbonate and sodium sulfate B calcium chloride and ammonium sulfate C calcium hydroxide and barium sulfate D calcium nitrate and lead(II) sulfate
- Question 18
Titration of an acid against a base is a method often used in the preparation of salts. Which properties of the acid, the base and the salt are required if this method is to be used? acid base salt A …
- Question 19
A metal reacts with dilute hydrochloric acid to produce a gas. What is used to identify this gas? A a glowing splint B a lighted splint C damp blue litmus paper D limewater
- Question 20
The oxide of an element X increases the rate of decomposition of hydrogen peroxide. At the end of the reaction the oxide of X is unchanged. Which details are those of X? proton number mass number …
- Question 21
Which element is sodium? melting point in °C electrical conduction density in g / cm3 A 1535 good …
- Question 22
Which row shows the correct number of protons and electrons in the ion of an element in Group II of the Periodic Table? number of protons number of electrons …
- Question 23
The diagram shows part of the Periodic Table. …
- Question 24
From your knowledge of the manufacture of both aluminium and iron, what is the order of chemical reactivity of aluminium, carbon and iron towards oxygen? most reactive least reactive A aluminium carbon iron B aluminium iron carbon C carbon aluminium …
- Question 25
An alloy of copper and zinc is added to an excess of dilute hydrochloric acid. Which observations are correct? residue filtrate A grey blue solution B none blue solution C none colourless solution D red-brown colourless solution
- Question 26
In the extraction of iron, carbon monoxide acts as A a catalyst. B an inert gas. C an oxidising agent. D a reducing agent.
- Question 27
Which substances react together to give hydrogen? A calcium oxide and water B copper and dilute sulfuric acid C copper and steam D magnesium and steam
- Question 28
The diagram shows apparatus for measuring the volume of hydrogen given off when an excess of dilute hydrochloric acid is added to powdered metal. The volume of gas is measured at room temperature and pressure. tap dilute hydrochloric acid metallic …
- Question 29
Which gas burns in air to form only one product? A ammonia B carbon monoxide C hydrogen chloride D methane
- Question 30
Why is carbon used in the purification of drinking water? A It desalinates the water. B It disinfects the water. C It filters out solids. D It removes tastes and odours from the water.
- Question 31
Which compound will not produce ammonia when heated with ammonium sulfate? A calcium oxide B magnesium oxide C sodium hydroxide D sulfuric acid
- Question 32
These reactions are used in the manufacture of sulfuric acid. …
- Question 33
Which substances will burn in air and give carbon dioxide amongst the combustion products? 1 calcium carbonate 2 ethane 3 ethanol 4 methanol A 1 and 2 only B 2 and 3 only …
- Question 34
The two statements are about the fractional distillation of crude oil. The statements may or may not be correct. They may or may not be linked. statement 1 Fractional distillation is used to separate crude oil into useful fractions. statement …
- Question 35
When butanol, represented by C4HwOH, burns in air, carbon dioxide and water are formed. C4HwOH + xO2 → 4CO2 + yH2O Which values of w, x and y balance the equation? …
- Question 36
An aqueous solution of a compound of formula C2H4O2 reacts with sodium carbonate, liberating carbon dioxide. What is the structural formula of the compound? …
- Question 37
How does the number of carbon, hydrogen and oxygen atoms in an ester differ from the total number of carbon, hydrogen and oxygen atoms in the alcohol and carboxylic acid from which the compound was derived? carbon atoms hydrogen atoms …
- Question 38
The list shows three chemical reactions. 1 combustion of ethanol 2 fermentation of glucose 3 reaction of ethanol with ethanoic acid to give an ester In which reactions is water a product? A 1 and 2 only B 1 and …
- Question 39
The diagram shows a reaction scheme. ethene + steam compound X compound Y compound Z catalyst compound X potassium acidified dichromate(VI) What is the final compound, …
- Question 40
The macromolecules of proteins, fats and carbohydrates can all be broken down into their simple units by a similar process. What is the process called? A esterification B hydrolysis C oxidation D reduction Group 140 Ce Cerium 58 141 Pr …
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