O-LevelChemistryOrganic Chemistry5070/12 · Oct/Nov 2020 · Q361 Mark

Hydrocarbon compounds can form rings of carbon atoms as well as chains. The structures of two hydrocarbon rings are shown. Which of P and Q is unsaturated and which reacts with aqueous bromine?

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Ais unsaturated: P, reacts with aqueous bromine: P

Bis unsaturated: P, reacts with aqueous bromine: Q

Cis unsaturated: Q, reacts with aqueous bromine: P

Dis unsaturated: Q, reacts with aqueous bromine: Q

✓ Correct answer

D: is unsaturated: Q, reacts with aqueous bromine: Q

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2020 Paper 1 Variant 2, question 36.

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