plumiNature of covalent and dative covalent bonds: AQA A‑Level Chemistry questions
AQA A-Level Chemistry past-paper questions on 3.1.3.2 Nature of covalent and dative covalent bonds, 2008–2025, with mark schemes and examiner’s reports where available.
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Q01.6
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All 31 questions on Nature of covalent and dative covalent bonds, as a list
- 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 2024, Paper 3, Q10 (1 mark): Which diagram shows the formation of a dative covalent bond? [1 mark] A B C D
- 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 2023, Paper 1, Q01.5 (1 mark): Name the type of bond between N and H in ammonia. [1 mark]
- 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 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
- 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 2020, AS Paper 1, Q16 (1 mark): Which compound contains a co-ordinate bond? [1 mark] A HF B NH3 C CHCl3 D NH4Cl
- June 2019, Paper 3, Q02.1 (1 mark): Draw the displayed formula of a molecule of H2SO4 [1 mark]
- 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 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, 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 2017, Paper 1, Q07.1 (1 mark): State the type of bonding between the oxygen and hydrogen in this compound [1 mark
- 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
- Specimen, Paper 1, Q08.1 (2 marks): A co-ordinate bond is formed when a transition metal ion reacts with a ligand. Explain how this co-ordinate bond is formed. [2 mark 0 8 . 1
- June 2015, CHEM1 (old spec), Q7(e)(i) (1 mark): The azide ion can be represented as N N – N– One of these bonds is a co-ordinate bond. On the following diagram, draw an arrowhead on one of the bonds to repres
- June 2014, CHEM1 (old spec), Q4(b) (1 mark): Ammonia reacts with boron trichloride to form a molecule with the following structure. State how the bond between ammonia and boron trichloride is formed. [1 ma
- June 2013, CHEM1 (old spec), Q3(b) (1 mark): State how two carbon atoms form a carbon–carbon bond in graphane. (1 mark)
- June 2013, CHEM1 (old spec), Q5(b) (2 marks): An aluminium chloride molecule reacts with a chloride ion to form the AlCl4−ion. Name the type of bond formed in this reaction. Explain how this type of bond is
- June 2012, CHEM1 (old spec), Q3(b) (2 marks): State the type of bond that is formed between the PH3 molecule and the H+ ion. Explain how this bond is formed. Name of bond How bond is formed (2 marks)
- January 2012, CHEM1 (old spec), Q1(a) (2 marks): Fluorine reacts with bromine to form liquid bromine trifluoride (BrF3). State the type of bond between Br and F in BrF3 and state how this bond is formed. Type
- June 2011, CHEM1 (old spec), Q3(d) (2 marks): A molecule of NHF2 reacts with a molecule of BF3 as shown in the following equation. NHF2 + BF3 F2HNBF3 State the type of bond formed between the N atom and the
- June 2010, CHEM5 (old spec), Q4(e)(i) (2 marks): In this diagram, bonds between nitrogen and iron are shown as N→Fe and as N–Fe. State the meaning of each of these symbols. Meaning of → Meaning of – (2 marks)
- June 2010, CHEM1 (old spec), Q1(a)(i) (1 mark): State the meaning of the term covalent bond. (1 mark)
- June 2010, CHEM1 (old spec), Q1(d)(i) (3 marks): Name the type of bond formed when a molecule of BF3 reacts with an F – ion. Explain how this bond is formed. Type of bond Explanation
- January 2010, CHEM1 (old spec), Q3(e) (2 marks): When H+ ions react with H2O molecules, H3O+ ions are formed. Name the type of bond formed when H+ ions react with H2O molecules. Explain how this type of bond i
- June 2009, CHEM1 (old spec), Q3(a)(i) (2 marks): 3 (a) (i) State the type of bond present between the C and H atoms in both of these molecules. Explain how this type of bond is formed. Type of bond Explanation
- January 2009, CHEM1 (old spec), Q2(d) (3 marks): 2 (d) Phosphorus is in the same group of the Periodic Table as nitrogen. A molecule of PH3 reacts with an H+ ion to form a PH4+ ion. Name the type of bond forme
- January 2009, CHM1 (2008 spec), Q2(d) (1 mark): 2 (d) Use your knowledge of bonding to draw a diagram showing the bonding in a molecule of C2H2 (1 mark)
- January 2009, CHM1 (2008 spec), Q4(a) (2 marks): 4 (a) The methylene molecule can be represented as :CH2 The equation for the reaction between H+ and :CH2 is shown below. H+ + :CH2 →CH3 + Name the type of bond
- June 2008, CHM6W (2008 spec), Q1 (1 mark): 1 Which one of the following solids contains covalent bonds but not ionic bonds? A C6H5COOH B CuSO4 C NH4Br D CH3NH3Cl
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