AS & A Level Chemistry (9701) — October–November 2024, Paper 11
40 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →In this question Q is used to represent a halogen atom. Magnesium and calcium each form a compound with chlorine and a compound with bromine. One of these compounds contains: -…
Answer this question and get it marked →Compound X contains two elements, Y and Z. Element Y is in Period 2 of the Periodic Table. In one atom of element Y, the p sub-shell has all three orbitals occupied; only one of…
Answer this question and get it marked →Glauber's salt consists of crystals of hydrated sodium sulfate, Na₂SO₄•xH₂O, which can be used for the manufacture of detergents. When a sample of Glauber's salt was heated, 1.91…
Answer this question and get it marked →What contains the greatest number of the named particles? A 6.0 dm³ of argon atoms at room conditions B 6.0 g of carbon dioxide molecules C 6.0 g of magnesium atoms D 6.0 g of…
Answer this question and get it marked →Phosphorus forms a compound with hydrogen called phosphine, PH₃. This compound can react with a hydrogen ion, H⁺. Which type of interaction occurs between PH₃ and H⁺? A dative…
Answer this question and get it marked →The graphs show trends in four physical properties of elements in Period 3, excluding argon. Which graph has electronegativity on the y-axis? Four graphs A, B, C and D plot a…
Answer this question and get it marked →The element tin exists in two forms, grey tin and white tin. Some properties of grey tin and white tin are shown. grey tin white tin --- --- --- boiling point / K 2543 2533…
Answer this question and get it marked →Which solid has a simple molecular lattice? A calcium fluoride B nickel C silicon(IV) oxide D sulfur
Answer this question and get it marked →The standard enthalpy change of combustion of carbon is −394 kJ mol⁻¹. The standard enthalpy change of combustion of hydrogen is −286 kJ mol⁻¹. The standard enthalpy change of…
Answer this question and get it marked →Three processes are described. 1 H⁺(aq) + OH⁻(aq) → H₂O(l) 2 CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O(l) 3 NH₃(g) → NH₃(l) Which statement is correct? A None of the processes have a…
Answer this question and get it marked →In alkaline solution, MnO₄⁻ ions oxidise SO₃²⁻ ions to SO₄²⁻ ions. The MnO₄⁻ ions are reduced to MnO₂. What is the ratio of the two ions in the balanced chemical equation for this…
Answer this question and get it marked →Lithium reacts with nitrogen at room temperature to form solid Li₃N. Three vessels of equal volume are connected by taps 1 and 2. The left-hand vessel is evacuated, the middle…
Answer this question and get it marked →When 0.20 mol of hydrogen gas and 0.15 mol of iodine gas are heated at 723 K until equilibrium is established, the equilibrium mixture contains 0.26 mol of hydrogen iodide. The…
Answer this question and get it marked →In acidic conditions, iodine reacts with propanone in a substitution reaction. CH₃COCH₃(aq) + I₂(aq) → CH₃COCH₂I(aq) + HI(aq) The kinetics of the reaction are investigated using a…
Answer this question and get it marked →The diagram shows a Boltzmann distribution curve. The axes are not labelled. The curve rises from the origin to a peak and then falls away towards higher energy. Point Y is marked…
Answer this question and get it marked →What are the acid–base nature and structure of SO₂? acid–base nature structure --- --- --- A acidic giant covalent lattice B acidic simple molecular C basic giant covalent lattice…
Answer this question and get it marked →Elements X and Y are in Period 3 of the Periodic Table. Element X is either phosphorus or sulfur. Element Y is either sodium or magnesium. Element X forms an oxide that reacts…
Answer this question and get it marked →Q is a semi-conductor. The chloride of Q reacts with water to form white fumes and an acidic solution. Which Period 3 element is Q? A magnesium B aluminium C silicon D phosphorus
Answer this question and get it marked →V and W are two compounds. Each one contains a different Group 2 element. A sample of each solid is added to water, shaken, and the pH of the resulting solution is measured.…
Answer this question and get it marked →Compound L decomposes on heating. One of the products is gas M. M reacts with unburned hydrocarbons to form peroxyacetyl nitrate, PAN. What could be the formula of L? A CaNO₃ B…
Answer this question and get it marked →In reaction 1, concentrated sulfuric acid is added to potassium chloride and the fumes produced are bubbled into aqueous potassium iodide solution. In reaction 2, potassium…
Answer this question and get it marked →The table refers to the hydrogen halides. Which row is correct? oxidation thermal stability --- --- --- A easier to oxidise down the group increases down the group B more…
Answer this question and get it marked →7.5 g of nitrogen monoxide reacts with 7.0 g of carbon monoxide on the surface of the catalytic converter in the exhaust system of a car. What is the total volume of the product…
Answer this question and get it marked →Three statements about ammonia molecules and ammonium ions are given. 1 In aqueous solution, ammonia molecules form coordinate bonds with hydroxide ions. 2 Ammonium ions are…
Answer this question and get it marked →Ethene reacts with steam in the presence of sulfuric acid. C₂H₄ + H₂O → CH₃CH₂OH Which type of reaction is this? A acid–base B addition C hydrolysis D substitution
Answer this question and get it marked →Compound Z has the molecular formula C₄H₈O₂. Compound Z reacts with propan-1-ol in the presence of concentrated H₂SO₄. The diagram shows the skeletal formulae of three esters S, T…
Answer this question and get it marked →Geraniol and nerol are isomers of each other. They are shown as skeletal/structural formulae. Both have the same carbon skeleton with a CH₂OH group attached to a carbon–carbon…
Answer this question and get it marked →Which compound has the greatest number of stereoisomers? A 2-methylhex-2-ene B 3-methylhex-2-ene C 4-methylhex-2-ene D 5-methylhex-2-ene
Answer this question and get it marked →Vitamin A contains retinol. The structure of retinol is shown: it has a substituted cyclohexene ring joined to a long unsaturated carbon chain bearing several C=C double bonds and…
Answer this question and get it marked →The structure of limonene is shown. Limonene, C₁₀H₁₆, has a cyclohexene ring with a methyl substituent and an isopropenyl (prop-1-en-2-yl) side group. What are the number of moles…
Answer this question and get it marked →The reaction of chlorine with methane is carried out in the presence of light. What is the function of the light? A to break the C–H bonds in methane B to break the chlorine…
Answer this question and get it marked →When X is added to NaOH(aq) and heated under reflux, pentan-2-ol is made. Which organic product is made when X is heated with a solution of KCN dissolved in ethanol? X is…
Answer this question and get it marked →1-chlorobutane and 1-iodobutane both react with aqueous sodium hydroxide by a nucleophilic substitution mechanism. Which reaction has the greatest rate under the same conditions…
Answer this question and get it marked →Compound Y reacts with alkaline I₂(aq). When the products of this reaction are acidified, a dicarboxylic acid is produced. The formula of the dicarboxylic acid is HOOC–R–COOH…
Answer this question and get it marked →Which alcohol gives only one possible oxidation product when warmed with dilute acidified potassium dichromate(VI)? A butan-1-ol B butan-2-ol C 2-methylpropan-1-ol D…
Answer this question and get it marked →Which compound, on reaction with hydrogen cyanide, produces a compound with a chiral centre? A CH₃CHO B CH₃CH₂COCH₂CH₃ C CH₃CO₂CH₃ D HCHO
Answer this question and get it marked →The diagram shows three reactions of ethanal, CH₃CHO. In each case an excess of ethanal is used. Ethanal reacts with acidified K₂Cr₂O₇ with heat to give solution 1; with alkaline…
Answer this question and get it marked →(CH₃)₃CCN reacts to form alcohol Y via the reaction sequence shown. (CH₃)₃CCN reacts with H⁺(aq) in reaction 1 to give molecule X, and X reacts with LiAlH₄ in reaction 2 to give…
Answer this question and get it marked →The diagram shows a section of an addition polymer. The polymer is made using two different monomers. The polymer chain shows repeating units: one type of unit has a carbon…
Answer this question and get it marked →The diagram shows the mass spectrum of a sample of chlorine. Peaks V, W, X, Y and Z are labelled. Peak V is at m/e ≈ 35 with high intensity (~85); peak W is at m/e ≈ 37 with lower…
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