Cambridge IGCSE · 0620 · Paper 2 · Multiple choice (Extended)
Chemistry 0620/23 May/June 2024 past paper
Cambridge IGCSE Chemistry (0620) Paper 2 (Multiple choice (Extended)), variant 3, May/June 2024: the question paper and its official mark scheme, 40 questions worth 40 marks. Free to open, no account needed.
- Questions
- 40
- Marks
- 40
File names: 0620_s24_qp_23 · 0620_s24_ms_23
Topics in this paper
Which syllabus chapters 0620/23 May/June 2024 tested, by marks. Each chapter links to every past-paper question on it.
Questions in 0620/23 May/June 2024
- Question 1
Sodium chloride is a liquid at 900 °C. Which row describes the arrangement and the motion of the particles in sodium chloride at …
- Question 2
Hydrogen chloride gas, HCl, reacts with ammonia gas, NH3, to form solid ammonium chloride. The apparatus is set up as shown. After a few minutes, a white cloud of solid ammonium chloride forms where the two gases meet. 2 solid …
- Question 3
Substances P and Q both conduct electricity. P is a mixture of two different types of atom. Q is made of only one type of atom. Which row describes P and …
- Question 4
An atom of element R contains 15 protons, 16 neutrons and 15 electrons. What is R? 4 gallium A phosphorus B sulfur C zinc D
- Question 5
Which molecule contains a double covalent bond between two atoms of the same element? 5 carbon dioxide A ethanol B ethene C nitrogen D
- Question 6
Silicon(IV) oxide is a covalently bonded compound. Which statements are correct? 6 Silicon atoms form four single bonds in silicon(IV) oxide. 1 Oxygen atoms form two double bonds in silicon(IV) oxide. 2 Silicon(IV) oxide has a high melting point. 3 …
- Question 7
The equation for the reaction of iron(III) oxide with carbon monoxide is shown. Fe2O3 + 3CO → 2Fe + 3CO2 What is the percentage yield of iron when 16.8 g of carbon monoxide reacts completely with iron(III) oxide to form …
- Question 8
What is the volume of 14.5 g of gaseous butane, C4H10, at room temperature and pressure? …
- Question 9
Aqueous copper(II) sulfate is electrolysed using copper electrodes. 9 d.c. power supply + – copper copper aqueous copper(II) sulfate Which statement describes what happens during the electrolysis? Copper atoms gain electrons at the cathode and copper(II) ions lose electrons at …
- Question 10
Electrolysis is carried out on concentrated aqueous potassium bromide using inert electrodes. Which products are formed at the anode and the cathode? 10 cathode anode hydrogen bromine A potassium bromine B bromine hydrogen C potassium hydrogen D
- Question 11
Hydrogen–oxygen fuel cells and gasoline are each used to power cars. Which statement describes an advantage of using hydrogen–oxygen fuel cells in cars in comparison with gasoline engines? 11 Hydrogen is a non-renewable resource. A Hydrogen is produced during the …
- Question 12
Plant cells use energy from sunlight for photosynthesis. Which row describes and explains the energy change that occurs? 12 explanation of energy change type of energy change endothermic A endothermic B exothermic C less energy is released making bonds than …
- Question 13
Two different experiments are done to find the enthalpy change, ΔH, of each reaction. The temperature of each reaction mixture is measured at the beginning of the reaction and after 3 minutes. 13 experiment 1 initial temperature …
- Question 14
The reaction pathway diagram for an endothermic reaction is shown. …
- Question 15
Which process is a physical change? 15 burning a piece of magnesium A reacting calcium carbonate with hydrochloric acid B melting an ice cube C the rusting of an iron nail D
- Question 16
The Contact process is used to convert sulfur dioxide to sulfur trioxide. Vanadium(V) oxide is the catalyst in this process. 2SO2(g) …
- Question 17
The equation for the decomposition of hydrogen peroxide, H2O2, is shown. …
- Question 18
Nitrogen reacts with hydrogen to form ammonia in the presence of an iron catalyst. The reaction is reversible. …
- Question 19
The equation for a redox reaction is shown. H2O2 + 2KI + H2SO4 …
- Question 20
Element E is in Group II of the Periodic Table. Which row describes element E and its oxide? 20 oxide of E element E acidic metal A basic metal B acidic non-metal C basic non-metal D
- Question 21
Lead(II) iodide is formed as a precipitate in the reaction shown. Pb(NO3)2(aq) + 2NaI(aq) → PbI2(s) + 2NaNO3(aq) Which method is used to separate the lead(II) iodide from the mixture? 21 crystallisation A distillation B evaporation C filtration D
- Question 22
Which statement explains why sulfur, S, has similar chemical properties to selenium, Se? 22 They both have the same number of electrons in their outer electron shell. A They are both solids at room temperature and pressure. B They are …
- Question 23
Atoms of sodium, rubidium and element Q each have one outer shell electron. Some properties of these elements are shown. 23 density in g / cm3 boiling point in °C melting point in °C element …
- Question 24
Which statement about elements in Group VIII of the Periodic Table is correct? 24 They all have a full outer shell of electrons. A They all react with Group I elements to form ionic compounds. B They are all diatomic …
- Question 25
The electrical conductivity of magnesium is tested. Magnesium is then added to dilute sulfuric acid. A gas, W, is produced. Which row describes the electrical conductivity of magnesium and identifies W? 25 gas W electrical conductivity of magnesium hydrogen good …
- Question 26
Aluminium metal is extracted from its purified ore by electrolysis. Which statement about the electrolyte in this process is correct? 26 The electrolyte is purified molten bauxite only. A The electrolyte is purified bauxite dissolved in molten cryolite. B The …
- Question 27
Part of the reactivity series is shown. potassium X calcium Y aluminium Which metals are represented by X and …
- Question 28
Some substances found in water extracted from a river are listed. 28 plastics 1 nitrates 2 oxygen 3 Which substances are harmful to aquatic life? 3 only D 2 only C 1 and …
- Question 29
Car engines which use gasoline as a fuel produce oxides of nitrogen. Oxides of nitrogen are removed from the exhaust gases. Which statements about the formation or removal of oxides of nitrogen are correct? 29 Gasoline reacts with nitrogen in …
- Question 30
Which structures represent a pair of structural isomers? 30 CH3CH2CH2CH2CH2CH3 1 CH3CH2CH2CH2CH(CH3)2 2 CH3CH(CH3)CH2CH2CH3 3 CH3CH(CH3)CH2CH2CH2CH3 4 3 and …
- Question 31
Alkanes are a homologous series of hydrocarbons. The table shows the names and boiling points of the first four members of this series. 31 boiling point / °C name –162 methane –89 ethane propane –42 0 butane Pentane is the …
- Question 32
Which displayed formula represents the ester formed by the reaction of propan-1-ol with ethanoic acid? …
- Question 33
Ethanol can be manufactured by fermentation and by the catalytic addition of steam to ethene. Which statement identifies an advantage of using one of these methods? 33 Catalytic addition requires a high temperature and pressure. A Ethanol produced by fermentation …
- Question 34
Which statement about carboxylic acids is correct? 34 They react with alkalis to form a salt and water. A They react with metals to form a salt and water. B They react with metal carbonates to form a salt, water …
- Question 35
The structure of a polymer is shown. …
- Question 36
Methane undergoes substitution reactions with chlorine and complete combustion with excess oxygen. Which row about the two reactions is correct? 36 equation for the complete combustion condition for reaction with chlorine methane + oxygen →carbon dioxide + hydrogen an acid …
- Question 37
What is used to identify the end-point of an acid–base titration? 37 balance A measuring cylinder B indicator C volumetric pipette D
- Question 38
Four pure substances, P, Q, R and S, are tested using chromatography. The same solvent is used each time. The table shows the distance moved by each substance and by the solvent from the baseline. 38 distance moved by solvent …
- Question 39
A substance is tested with three different reagents. Which row shows the results obtained with aqueous iron(II) nitrate? 39 acidified aqueous barium nitrate acidified aqueous silver nitrate aqueous sodium hydroxide no reaction no reaction A white precipitate white precipitate B …
- Question 40
A student carries out a flame test on a sample. The flame colour observed is light green. Which ion is present in the sample? …
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