Giant covalent structures: past paper questions
Real questions on giant covalent structures
The newest 16 of 16 written questions. Open one to see it on the real paper.
- 5070/22 · May/June 2025 · Q2a(i)[2]
Explain why graphite has a high melting point. Use ideas about structure and bonding.
See it on the paper → - 5070/21 · October/November 2024 · Q6b[1]
Explain why disulfur dichloride has a low melting point. Use the information in Fig. 6.1.
See it on the paper → - 5070/22 · October/November 2024 · Q6a[2]
Explain why boron nitride has a high melting point. Use the information in Fig. 6.1.
See it on the paper → - 5070/22 · October/November 2024 · Q6b[1]
Explain why hydrazine is a poor electrical conductor. Use the information in Fig. 6.1.
See it on the paper → - 5070/21 · May/June 2024 · Q1b[1]
has a giant covalent structure
See it on the paper → - 5070/21 · May/June 2023 · Q1c[1]
has a giant covalent structure
See it on the paper → - 5070/21 · May/June 2023 · Q2c[1]
A sample of sodium chloride is tested using a flame test. State the colour of the flame seen in this test.
See it on the paper → - 5070/22 · May/June 2022 · Q2b[1]
Predict the density of polonium. g / cm 3
See it on the paper → - 5070/22 · May/June 2022 · Q2c[1]
Sulfur has a boiling point of 445 °C. Predict the physical state of sulfur at 200 °C. Explain your answer. physical state explanation
See it on the paper → - 5070/21 · October/November 2021 · Q10b(i)[4]
Explain in terms of structure and bonding why compound P has a high melting point and compound Q has a low melting point. compound P compound Q
See it on the paper → - 5070/21 · May/June 2020 · Q1d[1]
has a high melting point because it has a giant covalent structure
See it on the paper → - 5070/22 · May/June 2020 · Q7d[1]
State the structure and bonding in silicon dioxide, SiO 2 .
See it on the paper → - 5070/21 · October/November 2019 · Q8c(i)[2]
Describe two similarities in the structures of silicon dioxide and diamond.
See it on the paper → - 5070/21 · October/November 2019 · Q8c(ii)[2]
Explain why silicon dioxide has a high melting point.
See it on the paper → - 5070/21 · May/June 2019 · Q9e[2]
Glass is made from sand, SiO 2 . Explain, in terms of structure and bonding, why sand has a high melting point.
See it on the paper → - 5070/22 · May/June 2019 · Q2b[1]
Boron has a giant covalent structure. Explain why boron has a high melting point.
See it on the paper →
What examiners said
The majority of candidates recognised which oxide had a giant covalent structure. Fe2O3 and SO2 were common incorrect responses.
— Examiner report, May/June 2023, 5070/21 Q1(c) (Cambridge)
The flame colour for sodium ions was not well known. Blue, green and red were common incorrect responses.
— Examiner report, May/June 2023, 5070/21 Q2(c) (Cambridge)
Most candidates predicted the density of polonium. The most common correct values were between 8.0 and 8.5. Most of the incorrect answers were below the density of tellurium.
— Examiner report, May/June 2022, 5070/22 Q2(b) (Cambridge)
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