Skip to content
Try on iPad

Solid structures: Eduqas A‑Level Chemistry questions

Every Eduqas A-Level Chemistry exam question on C1.5 Solid structures, 2016–2025, with its mark scheme and examiner’s report.

Find questions1,513
Calculations

1,513 questions

  1. Q10(c)(i)

    June 2025 · Component 1

    2 marksC1.5 Solid structures
    The whole paper ↗
    June 2025 Component 1, question 10(c)(i): Explain why silicon has the highest melting temperature of all these elements. [2]

  2. Q11(a)

    June 2025 · Component 1

    3 marksC1.5 Solid structures
    The whole paper ↗
    June 2025 Component 1, question 11(a): Calcium metal and calcium chloride can both conduct electricity under different conditions. State the conditions required and explain how these substances condu

  3. Q12(e)(iv)

    June 2025 · AS Component 1

    2 marksC1.5 Solid structures
    The whole paper ↗
    June 2025 AS Component 1, question 12(e)(iv): Sodium amide can be further reacted to produce sodium azide, NaN3 It is a crystalline solid with a high melting temperature. Suggest the type of structure prese

  4. Q2(a)

    June 2024 · Component 1

    1 markC1.5 Solid structures
    The whole paper ↗
    June 2024 Component 1, question 2(a): Draw the arrangement of ions in the structure of CsCl. Differentiate clearly between Cs+ and Cl– ions. [1]

  5. Q2(b)

    June 2024 · Component 1

    1 markC1.5 Solid structures
    The whole paper ↗
    June 2024 Component 1, question 2(b): Explain why CsCl conducts electricity when molten but not when solid. [1]

  6. Q10(a)

    June 2024 · Component 1

    2 marksC1.5 Solid structures
    The whole paper ↗
    June 2024 Component 1, question 10(a): These three elements are all metals. Explain how the structure of metals allows them to conduct electricity. Include a diagram as part of your answer. [2]

  7. Q7(a)(iv)

    June 2024 · AS Component 1

    6 marksC1.5 Solid structuresC1.4 Bonding
    The whole paper ↗
    June 2024 AS Component 1, question 7(a)(iv): The melting temperature of diamond is over 4000 °C whereas the melting temperature of trichloromethane is only –63.5°C. Compare and contrast the structures of t

  8. Q2

    Autumn 2021 · Component 1

    1 markC1.5 Solid structures
    The whole paper ↗
    Autumn 2021 Component 1, question 2: Explain why graphite is able to conduct electricity. [1]

  9. Q9(c)(i)

    Autumn 2021 · Component 1

    1 markC1.5 Solid structures
    The whole paper ↗
    Autumn 2021 Component 1, question 9(c)(i): Draw the crystal structure of caesium chloride. Label your diagram clearly.  [1]

  10. Q9(c)(ii)

    Autumn 2021 · Component 1

    1 markC1.5 Solid structures
    The whole paper ↗
    Autumn 2021 Component 1, question 9(c)(ii): Explain why caesium chloride has a different crystal structure from sodium chloride.  [1]

  11. Q8(a)

    Autumn 2020 · Component 1

    2 marksC1.5 Solid structures
    The whole paper ↗
    Autumn 2020 Component 1, question 8(a): The melting temperature of sodium is 98 °C and magnesium has a melting temperature of 639 °C. Explain why magnesium has a much higher melting temperature than s

  12. Q8(b)

    Autumn 2020 · Component 1

    1 markC1.5 Solid structures
    The whole paper ↗
    Autumn 2020 Component 1, question 8(b): Sodium and magnesium both conduct electricity. State which of these two metals you would expect to be the better conductor of electricity. Give a reason for you

  13. Q11(b)

    Autumn 2020 · AS Component 1

    3 marksC1.5 Solid structures
    The whole paper ↗
    Autumn 2020 AS Component 1, question 11(b): Graphite conducts electricity but diamond does not. [3]

  14. Q13(c)

    Autumn 2020 · AS Component 1

    2 marksC1.5 Solid structures
    The whole paper ↗
    Autumn 2020 AS Component 1, question 13(c): In the table below name the type of structure and bonding present in magnesium oxide, MgO, and chlorine dioxide, ClO2 [2] Compound Structure Bonding MgO ClO2

  15. Q5

    June 2019 · Component 1

    2 marksC1.5 Solid structures
    The whole paper ↗
    June 2019 Component 1, question 5: Both iodine and diamond contain covalent bonding. Explain why their melting temperatures are very different. [2]

  16. Q6

    June 2019 · AS Component 1

    1 markC1.5 Solid structures
    The whole paper ↗
    June 2019 AS Component 1, question 6: Complete the diagram below to show the arrangement of ions in a sodium chloride lattice. [1]

  17. Q11(a)(iv)

    June 2019 · AS Component 1

    4 marksC1.5 Solid structures
    The whole paper ↗
    June 2019 AS Component 1, question 11(a)(iv): Suggest why silicon oxide is a solid with a very high melting temperature whereas silicon chloride is a liquid at room temperature. [4]

  18. Q2

    June 2018 · Component 1

    1 markC1.5 Solid structures
    The whole paper ↗
    June 2018 Component 1, question 2: Draw the arrangement of ions in the structure of CsCl. [1]

  19. Q3

    June 2018 · AS Component 1

    1 markC1.5 Solid structures
    The whole paper ↗
    June 2018 AS Component 1, question 3: Complete the diagram to show the structure of caesium chloride, CsCl. [1]

  20. Q11(b)

    June 2017 · Component 1

    3 marksC1.5 Solid structures
    The whole paper ↗
    June 2017 Component 1, question 11(b): Identify the structures shown by all the oxides in the table and link these to the patterns seen in the melting temperatures. [3]
All 23 questions on Solid structures, as a list
  1. June 2025, Component 1, Q10(c)(i) (2 marks): Explain why silicon has the highest melting temperature of all these elements. [2]
  2. June 2025, Component 1, Q11(a) (3 marks): Calcium metal and calcium chloride can both conduct electricity under different conditions. State the conditions required and explain how these substances condu
  3. June 2025, AS Component 1, Q12(e)(iv) (2 marks): Sodium amide can be further reacted to produce sodium azide, NaN3 It is a crystalline solid with a high melting temperature. Suggest the type of structure prese
  4. June 2024, Component 1, Q2(a) (1 mark): Draw the arrangement of ions in the structure of CsCl. Differentiate clearly between Cs+ and Cl– ions. [1]
  5. June 2024, Component 1, Q2(b) (1 mark): Explain why CsCl conducts electricity when molten but not when solid. [1]
  6. June 2024, Component 1, Q10(a) (2 marks): These three elements are all metals. Explain how the structure of metals allows them to conduct electricity. Include a diagram as part of your answer. [2]
  7. June 2024, AS Component 1, Q7(a)(iv) (6 marks): The melting temperature of diamond is over 4000 °C whereas the melting temperature of trichloromethane is only –63.5°C. Compare and contrast the structures of t
  8. Autumn 2021, Component 1, Q2 (1 mark): Explain why graphite is able to conduct electricity. [1]
  9. Autumn 2021, Component 1, Q9(c)(i) (1 mark): Draw the crystal structure of caesium chloride. Label your diagram clearly.  [1]
  10. Autumn 2021, Component 1, Q9(c)(ii) (1 mark): Explain why caesium chloride has a different crystal structure from sodium chloride.  [1]
  11. Autumn 2020, Component 1, Q8(a) (2 marks): The melting temperature of sodium is 98 °C and magnesium has a melting temperature of 639 °C. Explain why magnesium has a much higher melting temperature than s
  12. Autumn 2020, Component 1, Q8(b) (1 mark): Sodium and magnesium both conduct electricity. State which of these two metals you would expect to be the better conductor of electricity. Give a reason for you
  13. Autumn 2020, AS Component 1, Q11(b) (3 marks): Graphite conducts electricity but diamond does not. [3]
  14. Autumn 2020, AS Component 1, Q13(c) (2 marks): In the table below name the type of structure and bonding present in magnesium oxide, MgO, and chlorine dioxide, ClO2 [2] Compound Structure Bonding MgO ClO2
  15. June 2019, Component 1, Q5 (2 marks): Both iodine and diamond contain covalent bonding. Explain why their melting temperatures are very different. [2]
  16. June 2019, AS Component 1, Q6 (1 mark): Complete the diagram below to show the arrangement of ions in a sodium chloride lattice. [1]
  17. June 2019, AS Component 1, Q11(a)(iv) (4 marks): Suggest why silicon oxide is a solid with a very high melting temperature whereas silicon chloride is a liquid at room temperature. [4]
  18. June 2018, Component 1, Q2 (1 mark): Draw the arrangement of ions in the structure of CsCl. [1]
  19. June 2018, AS Component 1, Q3 (1 mark): Complete the diagram to show the structure of caesium chloride, CsCl. [1]
  20. June 2017, Component 1, Q11(b) (3 marks): Identify the structures shown by all the oxides in the table and link these to the patterns seen in the melting temperatures. [3]
  21. June 2017, Component 1, Q11(c)(ii) (2 marks): Explain the differences in the electrical conductivity of these two compounds of aluminium. [2]
  22. June 2017, AS Component 1, Q9(b) (4 marks): When solid iodine is heated gently a purple vapour is seen but, even at high temperatures, diamond does not melt. [4]
  23. June 2016, AS Component 1, Q10(a) (4 marks): In sodium chloride and caesium chloride the arrangements of the particles in the solids are different. [4]

Questions, mark schemes and examiner’s reports are © WJEC Eduqas, from their published past papers. Plumi isn’t affiliated with any exam board. Want whole papers? Every Eduqas A-Level Chemistry paper.

Rather write your answers by hand on iPad? Plumi marks them against the same mark schemes.