0654.C2.6.01 — Describe the giant covalent structures of graphite and diamond: past paper questions
Real questions on 0654.c2.6.01 — describe the giant covalent structures of graphite and diamond
The newest 10 of 10 written questions. Open one to see it on the real paper.
- 0973/42 · May/June 2025 · Q5d(ii)[2]
One of the forms of carbon in Fig. 5.2 is diamond. Explain why diamond is used in cutting tools.
See it on the paper → - 0973/42 · May/June 2025 · Q5e[2]
Carbon reacts with hydrogen to form methane, CH 4 . Complete the dot-and-cross diagram in Fig. 5.3 to show the bonding in methane. Only show the outer-shell electrons. H H C H H
See it on the paper → - 0973/41 · October/November 2024 · Q5d[2]
Oxygen atoms bond with silicon atoms to form silicon( IV ) oxide, SiO 2 , which has a high melting point and is hard like diamond. Describe the way the silicon and oxygen bond in the structure of silicon( IV ) oxide.
See it on the paper → - 0973/41 · May/June 2024 · Q5b(i)[2]
Describe the structure of graphite.
See it on the paper → - 0973/41 · October/November 2023 · Q8d[3]
Graphite and diamond are giant covalent structures. Fig. 8.2 shows the structures of graphite and diamond. graphite diamond Fig. 8.2 Explain why graphite is used as an electrical conductor but diamond is not. Use ideas about structure and bonding.
See it on the paper → - 0973/31 · October/November 2021 · Q2c(i)[1]
State which structure represents diamond. Choose from A, B or C.
See it on the paper → - 0973/31 · October/November 2021 · Q2c(ii)[1]
State which structure represents graphite. Choose from A, B or C.
See it on the paper → - 0973/31 · October/November 2020 · Q11a(i)[2]
State the names of these forms of carbon. A
See it on the paper → - 0973/31 · October/November 2020 · Q11a(ii)[2]
State the type of chemical bonding and structure present in both A and B. type of bonding
See it on the paper → - 0973/42 · May/June 2020 · Q8a(i)[2]
Diamond is used in cutting tools. Explain why. Use ideas about the structure and bonding in diamond.
See it on the paper →
What examiners said
The use of the correct terminology was important as references to strength were rejected. Explanations in terms of structure were more successful with some candidates describing the tetrahedral structure of diamond.
— Examiner report, May/June 2025, 0973/42 Q5(d)(ii) (Cambridge)
The sharing of one pair of electrons between the carbon and hydrogens was generally shown correctly. Occasionally, candidates mistakenly added additional electrons to the hydrogen atoms.
— Examiner report, May/June 2025, 0973/42 Q5(e) (Cambridge)
This question required candidates to explain why graphite is used as an electrical conductor, but diamond is not. Many candidates only described general differences between the structure of graphite and diamond such as graphite is soft, metallic and can be used as a lubricant, and diamond as hard, transparent and used to make tools and jewellery rather than answer the questions about graphite bein...
— Examiner report, October/November 2023, 0973/41 Q8(d) (Cambridge)
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