0654.C11.2.01 — Name and draw the displayed formulas of: (a). methane and ethane (b).ethene (c).ethanol: past paper questions
Real questions on 0654.c11.2.01 — name and draw the displayed formulas of: (a). methane and ethane (b).ethene (c).ethanol
The newest 6 of 6 written questions. Open one to see it on the real paper.
- 0973/41 · May/June 2026 · Q8b[1]
Methane is the main constituent of natural gas. Draw the displayed formula of methane.
See it on the paper → - 0973/41 · October/November 2025 · Q8d[2]
Refinery gas contains propane, C 3 H 8 . Draw a diagram to show the displayed formula of propane.
See it on the paper → - 0973/31 · May/June 2025 · Q8c(ii)[1]
State the formula of octane.
See it on the paper → - 0973/32 · May/June 2024 · Q5a[2]
Ethanol has the formula C 2 H 5 OH. Complete Fig. 5.1 to show the structure of an ethanol molecule. C C Fig. 5.1
See it on the paper → - 0973/32 · May/June 2023 · Q8b[2]
Cracking is a process that produces small alkene molecules from larger alkane molecules. Ethane is an alkane. Ethene is an alkene. Fig. 8.2 shows the structure of ethane, C 2 H 6 . H H H C C H H H Fig. 8.2 Draw the structure of ethene, C 2 H 4 .
See it on the paper → - 0973/32 · May/June 2022 · Q11a(ii)[1]
State which of the molecules P, Q, R or S is ethanol.
See it on the paper →
What examiners said
This question was well answered. Candidates were clearly familiar with how to deduce the formula of a compound. However, they should be encouraged to follow convention and list the carbon atoms before hydrogen. Some gave the general formula for an alkane which was not the requirement of the question.
— Examiner report, May/June 2025, 0973/31 Q8(c)(ii) (Cambridge)
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