A-LevelChemistryOrganic synthesis9701/12 · May/June 2020 · Q401 Mark

A reaction mechanism is shown. [Diagram showing a reaction mechanism for the addition of HBr to an alkene followed by substitution by OH-.] Which statements about this reaction are correct? 1 Heterolytic bond fission occurs. 2 It is a substitution reaction. 3 OH¯ behaves as an electrophile.

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A1, 2 and 3 are correct

B1 and 2 only are correct

C2 and 3 only are correct

D1 only is correct

✓ Correct answer

B: 1 and 2 only are correct

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Topic: Organic synthesis, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2020 Paper 1 Variant 2, question 40.

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