O-LevelChemistryOrganic Chemistry5070/12 · Oct/Nov 2019 · Q341 Mark

When butene reacts with bromine, which compound could be made?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

ADiagram of 1,2-dibromobutane (CH2Br-CHBr-CH2-CH3)

BDiagram of 2,3-dibromobutane (CH3-CHBr-CHBr-CH3)

CDiagram of 1,3-dibromobutane (CH2Br-CH2-CHBr-CH3)

DDiagram of 1,4-dibromobutane (CH2Br-CH2-CH2-CH2Br)

✓ Correct answer

B: Diagram of 2,3-dibromobutane (CH3-CHBr-CHBr-CH3)

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Topic: Organic Chemistry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2019 Paper 1 Variant 2, question 34.

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