IGCSE Chemistry (0620) — October–November 2024, Paper 13
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Which conditions cause gas particles to move the fastest and the furthest apart? temperature pressure --- --- --- A high high B low high C high low D low low
Answer this question and get it marked →Which statement describes a liquid at room temperature? A A sample of a liquid has a fixed volume and shape. B A sample of a liquid does not have a fixed volume or shape. C The…
Answer this question and get it marked →A compound, X, has a melting point of 71 °C and a boiling point of 375 °C. Which statement about X is correct? A It is a liquid at 52 °C and a gas at 175 °C. B It is a liquid at…
Answer this question and get it marked →What is the nucleon number of an atom? A the number of neutrons B the number of protons C the total number of protons and neutrons D the total number of protons and electrons
Answer this question and get it marked →An atom has three electron shells. There are three electrons in the outer shell. How many protons and how many neutrons are in this atom? protons neutrons --- --- --- A 13 14 B 13…
Answer this question and get it marked →Which row gives the number of covalent bonds in one molecule of ammonia and in one molecule of hydrogen chloride? ammonia hydrogen chloride --- --- --- A 3 1 B 3 2 C 4 1 D 4 2
Answer this question and get it marked →Which statements about the structure and bonding in diamond are correct? 1 Each carbon atom in diamond is bonded to three other carbon atoms only. 2 Diamond contains many strong…
Answer this question and get it marked →Magnesium burns in oxygen to form magnesium oxide. The equation for the reaction is shown. 2Mg + O2 - 2MgO Which mass of magnesium oxide is formed when 48 g of magnesium is…
Answer this question and get it marked →Propane, C3H8, is burned in a limited amount of oxygen. Which equation represents this reaction? A C3H8 + 5O2 - 3CO2 + 4H2O B C3H8 + 4O2 - 3CO + 4H2O C C3H8 + 4O2 - 3CO2 + 2H2O +…
Answer this question and get it marked →The isotope of which element is used to define the relative atomic mass of other elements? A sulfur B oxygen C nitrogen D carbon
Answer this question and get it marked →What is the definition of electrolysis? A the formation of a positive ion by the removal of electrons using an electric current B the decomposition of an ionic compound, when…
Answer this question and get it marked →Which statement about electroplating a copper spoon with silver is correct? A Both the anode and cathode are made of carbon. B The copper spoon is the anode. C Aqueous copper(II)…
Answer this question and get it marked →Which row describes the reaction pathway diagram and energy change in an exothermic reaction? reaction pathway diagram energy is --- --- --- A reactants higher than products…
Answer this question and get it marked →The table shows the initial and final temperatures for four different reactions. reaction initial temperature / °C final temperature / °C --- --- --- 1 19 28 2 18 16 3 20 20 4 18…
Answer this question and get it marked →Which process is a chemical change? A boiling water B cooking an egg C dissolving sugar D melting ice cubes
Answer this question and get it marked →A student reacts strips of zinc with dilute sulfuric acid and measures the time taken to produce 100 cm3 of hydrogen. The experiment is repeated using different conditions. The…
Answer this question and get it marked →When blue copper(II) sulfate is heated, a white solid and water are formed. The white solid turns blue and gives out heat when water is added to it. Which terms describe the blue…
Answer this question and get it marked →Which statements about a redox reaction are correct? 1 Oxidation is the gain of oxygen. 2 Both oxidation and reduction take place in a redox reaction. 3 Reduction is the gain of…
Answer this question and get it marked →Which row identifies a basic oxide and describes an alkali? basic oxide description of an alkali --- --- --- A sodium oxide insoluble base B sodium oxide soluble base C sulfur…
Answer this question and get it marked →Which indicators turn blue when added to aqueous ammonia? 1 litmus 2 thymolphthalein 3 universal indicator A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only
Answer this question and get it marked →Ammonium chloride reacts with solution X to produce alkaline gas Y. The equation is shown. ammonium chloride + solution X - alkaline gas Y Which row identifies X and Y? X Y ---…
Answer this question and get it marked →The solubility of some salts is shown. chloride nitrate sulfate carbonate --- --- --- --- --- barium soluble soluble insoluble insoluble lead(II) insoluble soluble insoluble…
Answer this question and get it marked →The table shows some properties of the halogens. halogen melting point / °C colour at room temperature state at room temperature --- --- --- --- chlorine -101 yellow-green gas…
Answer this question and get it marked →J, L and M are elements in the Periodic Table. - J has the highest density. - L has the highest reactivity with water. - M has the highest atomic number. Which row identifies the…
Answer this question and get it marked →Which statement about elements in Group I of the Periodic Table is correct? A Rubidium has a greater density than caesium. B Lithium has a higher melting point than potassium. C…
Answer this question and get it marked →Which diagram shows a mixture of noble gases? (Four particle diagrams A-D are shown; the correct one shows separate single atoms of more than one kind, all unbonded.) A B C D
Answer this question and get it marked →Which statements about the alloy brass are correct? 1 It is harder than pure copper. 2 It does not conduct electricity. 3 It is a mixture of copper and nickel. 4 It is stronger…
Answer this question and get it marked →The bodies of aircraft are often made using aluminium. Which two properties of aluminium make it suitable for this use? property 1 property 2 --- --- --- A good conductor of…
Answer this question and get it marked →Four metals, P, Q, R and S, are added separately to water and to dilute hydrochloric acid. The table shows the results. observation with water observation with dilute hydrochloric…
Answer this question and get it marked →Iron is extracted from its ore in the blast furnace. Which statement about one of the reactions in the blast furnace is correct? A Carbon monoxide is reduced to carbon dioxide. B…
Answer this question and get it marked →Which pollutants found in river water lead to deoxygenation? 1 nitrates 2 harmful microbes 3 metal compounds 4 phosphates A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
Answer this question and get it marked →Three effects of air pollutants are listed. 1 photochemical smog 2 respiratory problems 3 acid rain Which effects are caused by oxides of nitrogen? A 1, 2 and 3 B 1 and 3 only C 1…
Answer this question and get it marked →Fractional distillation is used to separate petroleum into its fractions. Which statement about the fractional distillation of petroleum is correct? A The kerosene fraction is…
Answer this question and get it marked →Fertilisers are mixtures of different compounds used to increase the growth of crops. Which pair of substances contain the three essential elements for plant growth? A ammonium…
Answer this question and get it marked →Which row gives the relative molecular mass, Mr, of the first member of the named homologous series? homologous series Mr --- --- --- A alkanes 12 B alkenes 14 C alcohols 32 D…
Answer this question and get it marked →A hydrocarbon decolourises bromine water. Which statement about the hydrocarbon is correct? A It is an alkane. B Its molecular formula is C2H6. C It is a saturated hydrocarbon. D…
Answer this question and get it marked →Which statement describes how ethanol is manufactured from ethene? A Steam is added to ethene using an acid catalyst at 30 °C. B Steam is added to ethene using an acid catalyst at…
Answer this question and get it marked →Ethanoic acid reacts with aqueous sodium carbonate. Which gas is given off in this reaction? A hydrogen B carbon dioxide C carbon monoxide D oxygen
Answer this question and get it marked →A mixture containing an aqueous salt, sand and hot water is stirred. The mixture is then poured into a filtration apparatus (filter funnel and filter paper over a beaker). X is…
Answer this question and get it marked →A scientist uses a titration to calculate the concentration of acid in a sample of lemon juice. A measured volume of aqueous lemon juice and a few drops of an indicator are added…
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