0653.C11.4.01 — State that the bonding in alkenes includes a double carbon–carbon covalent bond and that alkenes are unsaturated hydrocarbons: past paper questions
Real questions on 0653.c11.4.01 — state that the bonding in alkenes includes a double carbon–carbon covalent bond and that alkenes are unsaturated hydrocarbons
The newest 16 of 16 written questions. Open one to see it on the real paper.
- 0653/32 · October/November 2025 · Q5b(i)[1]
Name the group of hydrocarbons to which ethene belongs. (i)
See it on the paper → - 0653/41 · October/November 2025 · Q6a[3]
Tick (✓) all the statements that are true for ethene. It is part of the alkane homologous series. It is formed by cracking large alkanes. It reacts with hydrogen to form ethane. It is a polymer.
See it on the paper → - 0653/41 · October/November 2025 · Q6c[3]
Complete the sentences about a reaction of ethene. Ethene reacts with to form ethanol. This is an reaction.
See it on the paper → - 0653/41 · May/June 2025 · Q5d(i)[1]
Circle the type of reaction when aqueous bromine reacts with an unsaturated hydrocarbon.
See it on the paper → - 0653/41 · May/June 2025 · Q5d(ii)[1]
State the colour change when aqueous bromine is added to an unsaturated hydrocarbon. to
See it on the paper → - 0653/42 · February/March 2025 · Q6c[3]
Table 6.1 shows statements about alkanes and alkenes. Put a tick (✓) in one box in each row to show whether each statement is true for alkanes only, true for alkenes only, or true for both. Table 6.1 true for alkenes only true for both true for alkanes only Four electrons are shared in a bond between two carbon atoms....
See it on the paper → - 0653/32 · October/November 2024 · Q5c(i)[1]
State the group of hydrocarbons to which methane belongs.
See it on the paper → - 0653/32 · October/November 2024 · Q5c(ii)[2]
Draw lines to show which descriptions are true for methane. One line has been drawn for you. description main constituent of natural gas generally unreactive methane hydrocarbon unsaturated decolourises aqueous bromine
See it on the paper → - 0653/32 · October/November 2024 · Q5c(iii)[1]
Complete the dot-and-cross diagram in Fig. 5.3 to show the bonding in a methane molecule, CH 4 . Show all the outer shell electrons. H H C H H
See it on the paper → - 0653/43 · October/November 2024 · Q8b(ii)[2]
The complete combustion reactions of both ethene and ethane produce carbon dioxide and water. Identify whether the statements are true or false. Tick (3) one box for each statement. true false One molecule of ethene produces the same number of molecules of carbon dioxide as one molecule of ethane. The combustion reacti...
See it on the paper → - 0653/43 · October/November 2024 · Q8c[2]
The general formulae for alkenes and alkanes are shown in Table 8.1. Table 8.1 alkenes alkanes C n H 2n C n H 2n+2 Write the formula for: an alkene with 10 hydrogen atoms
See it on the paper → - 0653/43 · May/June 2024 · Q8a(i)[1]
State one other similarity between all members of the alkene homologous series.
See it on the paper → - 0653/32 · February/March 2024 · Q8a[2]
Describe what is meant by unsaturated and hydrocarbon. unsaturated hydrocarbon
See it on the paper → - 0653/43 · October/November 2023 · Q8a(ii)[3]
Complete Table 8.1.
See it on the paper → - 0653/43 · October/November 2023 · Q8b(ii)[2]
Draw a diagram, similar to Fig. 8.1, to show the structure of propene.
See it on the paper → - 0653/43 · May/June 2022 · Q5a[1]
State how Fig. 5.1 shows that ethene is an alkene.
See it on the paper →
What examiners said
The correct answer, addition, was familiar to many candidates. Combustion and polymerisation were frequently suggested.
— Examiner report, May/June 2025, 0653/41 Q5(d)(i) (Cambridge)
The aqueous bromine test for unsaturation was familiar to some candidates. Red-brown was accepted as an alternative for orange, and decolourised was allowed for colourless. Transparent, clear and white are not accepted as alternatives for colourless.
— Examiner report, May/June 2025, 0653/41 Q5(d)(ii) (Cambridge)
The most common mistakes were to place ticks in the ‘true for alkanes only’ column on the first or third rows. Most candidates gained at least partial credit for correct ticks in the second and fourth rows.
— Examiner report, February/March 2025, 0653/42 Q6(c) (Cambridge)
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