Bonding: AQA A‑Level Chemistry questions

Every AQA A-Level Chemistry exam question on 3.1.3 Bonding, 2016–2025, with its mark scheme and examiner’s report.

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2,301 questions

Q05.1
June 2025 · Paper 1
2 marks3.1.3 Bonding
The whole paper ↗
Q05.3
June 2025 · Paper 1
2 marks3.1.3 Bonding
The whole paper ↗
Q07.2
June 2025 · Paper 1
1 mark3.1.3 Bonding
The whole paper ↗
Q07.5
June 2025 · Paper 1
2 marks3.1.3 Bonding
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Q27
June 2025 · Paper 3
1 mark3.1.3 Bonding
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Q31
June 2025 · Paper 3
1 mark3.1.3 Bonding 3.2.4 Properties of Period 3 elements and their oxides
The whole paper ↗
Q04.1
June 2025 · AS Paper 1
2 marks3.1.3 Bonding
The whole paper ↗
Q11
June 2025 · AS Paper 1
1 mark3.1.3 Bonding
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Q19
June 2025 · AS Paper 1
1 mark3.1.3 Bonding
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Q01.5
June 2025 · AS Paper 2
1 mark3.1.3 Bonding
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Q01.6
June 2025 · AS Paper 2
2 marks3.1.3 Bonding
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Q02.3
June 2025 · AS Paper 2
3 marks3.1.3 Bonding
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Q03
June 2025 · AS Paper 2
6 marks3.1.3 Bonding
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Q14
June 2025 · AS Paper 2
1 mark3.1.3 Bonding
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Q05.5
June 2024 · Paper 1
1 mark3.1.3 Bonding
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Q05.6
June 2024 · Paper 1
2 marks3.1.3 Bonding
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Q09.5
June 2024 · Paper 1
3 marks3.1.3 Bonding
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Q10
June 2024 · Paper 3
1 mark3.1.3 Bonding
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Q11
June 2024 · Paper 3
1 mark3.1.3 Bonding
The whole paper ↗
Q12
June 2024 · Paper 3
1 mark3.1.3 Bonding
The whole paper ↗

All 132 questions on Bonding, as a list

June 2025, Paper 1, Q05.1 (2 marks): Explain why chlorine has a lower boiling point than bromine. [2 marks]
June 2025, Paper 1, Q05.3 (2 marks): Draw the shape of a BrF3 molecule. Include any lone pairs of electrons that influence the shape. Explain why the BrF3 molecule has the shape you have drawn. [2
June 2025, Paper 1, Q07.2 (1 mark): Suggest why vanadium can be pulled into thin wires. [1 mark]
June 2025, Paper 1, Q07.5 (2 marks): Explain why vanadium(III) sulfate has a high melting point. [2 marks]
June 2025, Paper 3, Q27 (1 mark): Which species has a tetrahedral shape? [1 mark] A SF4 B FeCl4– C XeF4 D ICl4–
June 2025, Paper 3, Q31 (1 mark): The oxides P4O10 and SO2 both react with water to form acid molecules. Which row gives the correct shape around the central atom for each acid molecule that is
June 2025, AS Paper 1, Q04.1 (2 marks): Strontium and calcium have the same metallic structure. Explain why strontium has a lower melting point than calcium. [2 marks]
June 2025, AS Paper 1, Q11 (1 mark): Which diagram best shows the arrangement and the relative sizes of the ions in solid sodium chloride? [1 mark] A B C D
June 2025, AS Paper 1, Q19 (1 mark): Which of these molecules is polar? [1 mark] A BF3 B CO2 C CCl4 D SCl2
June 2025, AS Paper 2, Q01.5 (1 mark): The carbocation (CH3)3C+ is formed as an intermediate in the reaction of 2-bromo-2-methylpropane with KCN Suggest the value of the bond angle around the central
June 2025, AS Paper 2, Q01.6 (2 marks): A co-ordinate bond is formed when the (CH3)3C+ carbocation reacts with CN– to form a nitrile. Explain how this co-ordinate bond is formed during this reaction.
June 2025, AS Paper 2, Q02.3 (3 marks): Hydrogen bonds exist between molecules of liquid methanol. Draw a diagram to show a hydrogen bond between two molecules of methanol. Include all the lone pairs
June 2025, AS Paper 2, Q03 (6 marks): Molecules of CCl4 and CHCl3 have similar tetrahedral shapes. The boiling point of CCl4 is 77 °C The boiling point of CHCl3 is 61 °C Explain why CCl4 has a highe
June 2025, AS Paper 2, Q14 (1 mark): Sulfur dioxide can be found in the flue gases from the combustion of some fuels. Which statement about sulfur dioxide is correct? [1 mark] A Sulfur dioxide mole
June 2024, Paper 1, Q05.5 (1 mark): Draw the shape of the Cl3 – ion. Include any lone pairs of electrons that influence the shape. [1 mark]
June 2024, Paper 1, Q05.6 (2 marks): Chlorine forms an ion with the Group 3 element thallium (Tl). State and explain the bond angle in TlCl2 + [2 marks] Bond angle Explanation
June 2024, Paper 1, Q09.5 (3 marks): Sodium reacts with aluminium and hydrogen to form solid NaAlH4 Give an equation for this reaction. Suggest why NaAlH4 has a high melting point. [3 marks] Equati
June 2024, Paper 3, Q10 (1 mark): Which diagram shows the formation of a dative covalent bond? [1 mark] A B C D
June 2024, Paper 3, Q11 (1 mark): Which substance does not have any bond angles of 120°? [1 mark] A benzene B boron trifluoride C cyclohexane D graphite
June 2024, Paper 3, Q12 (1 mark): Which molecule does not have a permanent dipole? [1 mark] A NH3 B PCl3 C SCl2 D SiCl4
June 2024, Paper 3, Q13 (1 mark): Which compound forms the greatest number of hydrogen bonds per molecule in the liquid state? [1 mark] A CH3CH2COOH B CH3CH2OCH3 C CH3CH2CHO D CH3CH2CH2OH
June 2024, AS Paper 1, Q03.1 (1 mark): Define electronegativity. [1 mark]
June 2024, AS Paper 1, Q03.2 (2 marks): Explain why the C–Cl bond is polar. [2 marks]
June 2024, AS Paper 1, Q03.3 (2 marks): Although the C–Cl bond is polar, CCl4 is a non-polar molecule. Explain why. [2 marks]
June 2024, AS Paper 1, Q03.4 (3 marks): There are van der Waals forces between non-polar molecules. Explain what causes these forces. [3 marks]
June 2024, AS Paper 1, Q03.5 (2 marks): Draw a 3D diagram to show how the particles are arranged in a barium oxide lattice. You should draw eight particles. [2 marks]
June 2024, AS Paper 1, Q05 (6 marks): SF6 and SF3+ have different shapes and different bond angles. Deduce the shape of SF6 and the shape of SF3+ State the bond angle in SF6 and the bond angle in SF
June 2024, AS Paper 1, Q11 (1 mark): Which involves the formation of a dative covalent bond? [1 mark] A PCl3 + Cl2 → PCl5 B Na+ + H– → NaH C Mg + Cl2 → MgCl2 D BH3 + H– → BH4–
June 2024, AS Paper 1, Q15 (1 mark): Which element has the lowest melting point? [1 mark] A Na B Mg C K D Ca
June 2024, AS Paper 2, Q07.3 (3 marks): Propanoic acid molecules cannot be separated from the reaction mixture by simple distillation because propanoic acid forms hydrogen bonds with water molecules.
June 2023, Paper 1, Q01.2 (2 marks): The electron pair repulsion theory can be used to predict the shape of a PF3 molecule. Draw the shape of a PF3 molecule. Include any lone pairs of electrons tha
June 2023, Paper 1, Q01.5 (1 mark): Name the type of bond between N and H in ammonia. [1 mark]
June 2023, Paper 3, Q05.2 (4 marks): All three compounds in Table 2 are polar. Ethanol is the most polar and ethylamine is the least polar. Explain why all three molecules are polar and why ethylam
June 2023, Paper 3, Q05.3 (3 marks): Explain the trend in the boiling points of the three compounds. Refer to the intermolecular forces in all three compounds in your answer. [3 marks]
June 2023, Paper 3, Q09 (1 mark): Which substance has significant electron delocalisation? [1 mark] A graphite B iodine C sodium chloride D tetrachloromethane
June 2023, Paper 3, Q15 (1 mark): What happens when water is vaporised? [1 mark] A Covalent bonds break within molecules. B Intermolecular forces are overcome. C The enthalpy of the molecules de
June 2023, AS Paper 1, Q02.1 (2 marks): Describe the structure and bonding in magnesium. [2 marks]
June 2023, AS Paper 1, Q05 (6 marks): This question is about the shapes of molecules. Discuss the difference between the shapes of CF4 and XeF4 In your answer you should: • name the shape of each mo
June 2023, AS Paper 1, Q13 (1 mark): Which molecule has a permanent dipole? [1 mark] A NCl3 B CCl4 C PF5 D SF6
June 2023, AS Paper 1, Q14 (1 mark): Which molecule can accept an electron pair during the formation of a coordinate bond? [1 mark] A NH3 B AlCl3 C SiH4 D PCl3
June 2023, AS Paper 2, Q06.1 (1 mark): State why the C–Cl bonds in dichloromethane and tetrachloromethane are polar. [1 mark]
June 2023, AS Paper 2, Q06.2 (1 mark): Suggest why tetrachloromethane molecules are non-polar. [1 mark]
June 2023, AS Paper 2, Q06.3 (2 marks): Explain why tetrachloromethane has a higher boiling point than dichloromethane. [2 marks]
June 2023, AS Paper 2, Q06.4 (2 marks): Propan-1-ol has a higher boiling point than the other two compounds because of hydrogen bonding. Describe the hydrogen bonding in propan-1-ol. [2 marks]
June 2022, Paper 1, Q05.7 (6 marks): Table 4 shows the melting points of three substances. Table 4 Substance Melting point / K sodium chloride 1074 chlorine 172 hydrogen chloride 158 Explain why th
June 2022, Paper 1, Q06.6 (3 marks): The ClF2+ ion contains two different Group 7 elements. Use your understanding of the electron pair repulsion theory to draw the shape of this ion. Include any l
June 2022, Paper 3, Q08 (1 mark): Which substance has no delocalised electrons? [1 mark] A graphite B methylbenzene C poly(propene) D sodium
June 2022, AS Paper 1, Q03 (3 marks): This question is about shapes of molecules. Complete Table 2 by drawing the shapes of both the AsF5 and KrF2 molecules, showing all lone pairs of electrons that
June 2022, AS Paper 1, Q04.1 (3 marks): Complete the diagram to show how one molecule of ammonia can form a hydrogen bond with one molecule of ethanol. Include all lone pairs of electrons and partial
June 2022, AS Paper 1, Q04.2 (1 mark): Define the term electronegativity. [1 mark]
June 2022, AS Paper 1, Q04.3 (1 mark): Deduce the two atoms from Table 3 that will form the most polar bond. [1 mark]
June 2022, AS Paper 1, Q04.4 (2 marks): The C–Br bond is polar. Explain why CBr4 is not a polar molecule. [2 marks]
June 2022, AS Paper 1, Q04.5 (3 marks): Suggest, in terms of the intermolecular forces for each compound, why CBr4 has a higher boiling point than CHBr3 [3 marks]
June 2022, AS Paper 1, Q15 (1 mark): The equation for a reaction is AsH3 + H+ → AsH4+ What type of interaction forms in this reaction? [1 mark] A Co-ordinate bond B Dipole–dipole force C Hydrogen b
June 2022, AS Paper 1, Q23 (1 mark): Which is not responsible for conducting electricity? [1 mark] A The sodium ions in molten sodium chloride B The electrons between layers of carbon atoms in grap
June 2022, AS Paper 2, Q13 (1 mark): Which compound has the highest boiling point? [1 mark] A CH3COCH2CH3 B CH3CH2CH2CH2OH C CH3CH2CH2CHO D CH3CH2CH2CH2CH3
November 2021, Paper 1, Q03.3 (4 marks): Explain, in terms of crystal structure and bonding, why silicon(IV) oxide has a higher melting point than phosphorus(V) oxide. [4 marks]
November 2021, Paper 2, Q02.5 (4 marks): HOCH2CH2NH2 can be represented as XNH2 [HOCH2CH2NH3]+ can be represented as [XNH3]+ Draw the shape of XNH2 and of [XNH3]+ State whether the H–N–H bond angle in
November 2021, Paper 3, Q12 (1 mark): Which statement about inorganic ionic compounds is always correct? [1 mark] A They dissolve in water to give neutral solutions. B They release energy when they
November 2021, Paper 3, Q13 (1 mark): Which species has a lone pair of electrons on the central atom? [1 mark] A CO2 B SO2 C PCl6‒ D SO42–
November 2021, Paper 3, Q14 (1 mark): In which substance do covalent bonds break when it melts? [1 mark] A hexane B ice C iodine D silicon dioxide
November 2021, Paper 3, Q15 (1 mark): In which molecule are all the atoms in the same plane? [1 mark] A CH3CHO B CH3NH2 C C6H5Cl D C6H5CH3
November 2021, Paper 3, Q16 (1 mark): Which molecule has a permanent dipole? [1 mark] A BF3 B NH3 C SiCl4 D SO3
November 2021, Paper 3, Q17 (1 mark): Which statement about (CH3)2CHCH2COOH is correct? [1 mark] A In aqueous solution it reacts with magnesium to form carbon dioxide. B It can form hydrogen bonds.
November 2021, Paper 3, Q22 (1 mark): Which substance contains delocalised electrons? [1 mark] A cyclohexane B graphite C iodine D sodium chloride
November 2021, AS Paper 1, Q02.2 (2 marks): Describe the bonding in magnesium. [2 marks]
November 2021, AS Paper 1, Q02.3 (3 marks): Explain, in terms of structure and bonding, why magnesium chloride has a high melting point. [3 marks]
November 2021, AS Paper 1, Q05.1 (3 marks): Chlorine has a low boiling point because the forces between the molecules are weak. Explain how these forces arise between molecules of chlorine. [3 marks]
November 2021, AS Paper 1, Q13 (1 mark): Which molecule is not able to form a co-ordinate bond with another species? [1 mark] A BH3 B CH4 C NH3 D H2O
November 2021, AS Paper 1, Q14 (1 mark): Which species has a square planar shape? [1 mark] A NH4+ B SF4 C XeF4 D PCl4+
November 2021, AS Paper 1, Q15 (1 mark): Which bond has the most unsymmetrical electron distribution? [1 mark] A H–O B H–S C H–N D H–P
November 2021, AS Paper 2, Q03.3 (2 marks): Molecules of propan-2-ol and propanone each contain three carbon atoms. Complete Table 1 to suggest the shape and a bond angle around the central C atom in a mo
November 2021, AS Paper 2, Q03.4 (3 marks): Explain why propanone has a lower boiling point than propan-2-ol. [3 marks]
November 2020, Paper 1, Q07 (6 marks): The melting point of XeF4 is higher than the melting point of PF3 Explain why the melting points of these two compounds are different. In your answer you should
November 2020, Paper 2, Q05.1 (3 marks): Define the term electronegativity. Explain the polarity of the C–Br bond in 2-bromopropane. [3 marks] Electronegativity Explanation
November 2020, Paper 3, Q08 (1 mark): Which has a bond angle of 109.5°? [1 mark] A C (diamond) B C (graphite) C NH2– D NH3
November 2020, AS Paper 1, Q05.1 (2 marks): Explain why the melting point of magnesium is higher than the melting point of sodium. [2 marks]
November 2020, AS Paper 1, Q06 (5 marks): This question is about shapes of molecules and ions. Draw the shape of NCl3 and of NCl4+ Include any lone pairs of electrons that influence the shape. Name the
November 2020, AS Paper 1, Q10 (1 mark): Which species contains bonds that have different polarities? [1 mark] A NH4+ B CCl4 C CH3Cl D H3O+
November 2020, AS Paper 1, Q11 (1 mark): Which compound has hydrogen bonding? [1 mark] A NaH B NH3 C HI D SiH4
November 2020, AS Paper 1, Q16 (1 mark): Which compound contains a co-ordinate bond? [1 mark] A HF B NH3 C CHCl3 D NH4Cl
November 2020, AS Paper 1, Q18 (1 mark): Which of these elements has the highest melting point? [1 mark] A Argon B Chlorine C Silicon D Sulfur
November 2020, AS Paper 1, Q23 (1 mark): Which molecule has a permanent dipole? [1 mark] A CF4 B PCl5 C CO2 D Cl2O
November 2020, AS Paper 2, Q01.4 (1 mark): The C–Cl bond in 1-chloropropane is polar because carbon and chlorine have different electronegativities. Define the term electronegativity. [1 mark]
November 2020, AS Paper 2, Q04.1 (3 marks): The boiling point of pentan-2-ol is 119 °C The boiling point of pent-1-ene is 30 °C Explain why pentan-2-ol has a higher boiling point than pent-1-ene. [3 marks
June 2019, Paper 1, Q08.1 (3 marks): Draw a diagram to show the strongest type of interaction between two molecules of ethanol (C2H5OH) in the liquid phase. Include all lone pairs and partial charg
June 2019, Paper 1, Q08.2 (3 marks): Methoxymethane (CH3OCH3) is an isomer of ethanol. Table 5 shows the boiling points of ethanol and methoxymethane. Table 5 Compound Boiling point / °C ethanol 78
June 2019, Paper 3, Q01.3 (4 marks): Draw a diagram to show the shape of a molecule of H2O Include any lone pairs of electrons. State the H−O−H bond angle. Explain this shape and bond angle. [4 mar
June 2019, Paper 3, Q02.1 (1 mark): Draw the displayed formula of a molecule of H2SO4 [1 mark]
June 2019, Paper 3, Q31 (1 mark): Which is not responsible for conduction of electricity? [1 mark] A The sodium ions in molten sodium chloride B The electrons between layers of carbon atoms in g
June 2019, AS Paper 1, Q01.2 (2 marks): Explain, in terms of structure and bonding, why the melting point of sodium fluoride is high. [2 marks]
June 2019, AS Paper 1, Q01.3 (2 marks): The ion H2F+ is formed when hydrogen fluoride gains a proton as shown in the equation HF + H+ → H2F+ Name the type of bond formed when HF reacts with H+ Explain
June 2019, AS Paper 1, Q01.4 (4 marks): Fluoroantimonic acid contains two ions, SbF6 – and H2F+ Draw the shape of the SbF6 – ion and the shape of the H2F+ ion. Include any lone pairs that influence th
June 2019, AS Paper 1, Q11 (1 mark): Which substance has delocalised electrons? [1 mark] A graphite B iodine C sodium chloride D tetrachloromethane
June 2019, AS Paper 1, Q12 (1 mark): Which species is not pyramidal in shape? [1 mark] A PF3 B H3O+ C CH3 – D BF3
June 2019, AS Paper 1, Q13 (1 mark): Which change occurs when water is vaporised? [1 mark] A An exothermic change occurs. B Covalent bonds are broken. C Intermolecular forces are overcome. D The to
June 2019, AS Paper 2, Q05.1 (3 marks): Draw a diagram to show how two methanol molecules interact with each other through hydrogen bonding in the liquid phase. Include all partial charges and all lon
June 2019, AS Paper 2, Q05.2 (1 mark): The bond angle around the oxygen atom in methanol is slightly smaller than the regular tetrahedral angle of 109.5° Explain why this bond angle is smaller than 1
June 2019, AS Paper 2, Q21 (1 mark): Which compound has the highest boiling point? [1 mark] A CH3CH2CH2Br B CH3CH2CH2F C CH3CH2CHO D CH3CH2COOH
June 2018, Paper 1, Q08.1 (6 marks): Use your knowledge of structure and bonding to explain why sodium bromide has a melting point that is higher than that of sodium, and higher than that of sodium
June 2018, Paper 1, Q08.4 (4 marks): Sodium reacts with ammonia to form the compound NaNH2 that contains the NH2 – ion. Draw the shape of the NH2 – ion. Include any lone pairs of electrons that inf
June 2018, Paper 3, Q06 (1 mark): Which diagram shows the correct bonding and correct bond polarity in a molecule of oxygen difluoride? [1 mark] A B C D In the early twentieth century the appara
June 2018, Paper 3, Q30 (1 mark): Which species has a shape that is influenced by the presence of one or more lone pairs of electrons around the central atom? [1 mark] A AlCl3 B ClF3 C IF6 + D P
June 2018, AS Paper 1, Q09.1 (3 marks): Draw the shape of a molecule of krypton difluoride (KrF2). Include in your answer any lone pairs of electrons that influence the shape. Name the shape produced
June 2018, AS Paper 1, Q09.2 (2 marks): There are two lone pairs of electrons on the oxygen atom in a molecule of oxygen difluoride (OF2). Explain how the lone pairs of electrons on the oxygen atom in
June 2018, AS Paper 1, Q09.3 (3 marks): Silicon tetrafluoride (SiF4) is a tetrahedral molecule. Deduce the type of intermolecular forces in SiF4 Explain how this type of intermolecular force arises an
June 2018, AS Paper 1, Q10 (1 mark): Which row shows the bonding in ammonium chloride? [1 mark] Covalent Dative covalent Ionic A    B    C    D   
June 2018, AS Paper 2, Q10 (1 mark): Which molecule does not have a permanent dipole? [1 mark] A CH3Br B CH2Br2 C CHBr3 D CBr4
June 2018, AS Paper 2, Q13 (1 mark): Which compound has the highest boiling point? [1 mark] A butanal B butan-2-ol C but-2-ene D 1-fluorobutane
June 2017, Paper 1, Q06.3 (2 marks): State the type of crystal structure shown in silicon dioxide and in sulfur trioxide [2 marks Silicon dioxide Sulfur trioxide
June 2017, Paper 1, Q06.4 (4 marks): Explain why silicon dioxide has a higher melting point than sulfur trioxide. [4 marks
June 2017, Paper 3, Q05 (1 mark): Which compound has the highest boiling point? [1 mark] A CH3CH2CH2OH B CH3CH2CHO C CH3COCH3 D CH3COOCH3
June 2017, AS Paper 1, Q05.1: Give the meaning of the term electronegativity. [1 mar
June 2017, AS Paper 1, Q05.2 (2 marks): Explain how permanent dipole-dipole forces arise between hydrogen chloride molecules. [2 mark
June 2017, AS Paper 1, Q05.3 (4 marks): Complete Table 4 by naming the shape of each molecule. Place a tick () in the final column if the molecule has a permanent dipole. [4 mark Table 4 Molecule Nam
June 2017, AS Paper 1, Q09: Which is the correct crystal structure for the substance named? [1 mar Substance Structure A Iodine Simple molecular B Diamond Ionic C Sodium chloride Giant cov
June 2017, AS Paper 1, Q18: Which species has one or more bond angle(s) of 90°? [1 mar A CH4 B NH4 + C ClF4 − D AlCl4 −
June 2017, AS Paper 2, Q09.1 (2 marks): Chloroethene has a melting point of −154 ºC All types of PVC melt at temperatures over 100 ºC Explain why PVC melts at a higher temperature than chloroethene. [
June 2017, AS Paper 2, Q13 (1 mark): Which is the most likely bond angle around the oxygen atom in ethanol? [1 mark] A 104.5º B 109.5º C 120º D 180º
June 2016, AS Paper 1, Q04.1 (5 marks): In terms of structure and bonding explain why the boiling point of bromine is different from that of magnesium. Suggest why magnesium is a liquid over a much gr
June 2016, AS Paper 1, Q07.1 (3 marks): Draw diagrams to illustrate the shapes of NH3 molecules and of AlCl3 molecules. Include in your diagrams any lone pairs of electrons that influence the shape. I
June 2016, AS Paper 1, Q07.2 (2 marks): Name the type of bond formed between N and Al in H3NAlCl3 and explain how this bond is formed. [2 marks] Type of bond Explanation
June 2016, AS Paper 1, Q07.3 (2 marks): Explain how the value of the Cl-Al-Cl bond angle in AlCl3 changes, if at all, on formation of the compound H3NAlCl3 [2 marks]
June 2016, AS Paper 1, Q18: Which substance exists as a macromolecule? [1 mar A Cu B SiO2 C P4O10 D MgO
June 2016, AS Paper 1, Q20 (1 mark): Which molecule has the largest dipole? [1 mark A ClF3 B BF3 C SF6 D CF4
June 2016, AS Paper 2, Q04.3 (6 marks): Predict the relative boiling points of these three compounds from the highest to the lowest boiling points. Justify this order in terms of intermolecular forces
Specimen, Paper 1, Q01.1 (6 marks): 3
Specimen, Paper 1, Q05.3 (4 marks): Diagram Explanation
Specimen, Paper 2, Q04.6 (1 mark): List alcohol A, product B and isomer C in order of increasing boiling point. [1 mark] 0 4 . 6
Specimen, Paper 2, Q05.2 (4 marks): 5
Specimen, Paper 3, Q01.4 (2 marks): Use your knowledge of structure and bonding to explain why it is possible to separat ethanal in this way. [2 mark 0 1 . 4
Specimen, Paper 3, Q07: 5

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