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A-LevelChemistryHalogen derivatives9701/12 · May/June 2020 · Q221 Mark

Which row correctly shows the type of mechanism of each of the two reactions? C2H5Br + KCN CH3COCH3 + HCN electrophilic substitution electrophilic addition electrophilic substitution nucleophilic addition nucleophilic substitution electrophilic addition nucleophilic substitution nucleophilic addition

Aelectrophilic substitution, electrophilic addition
Belectrophilic substitution, nucleophilic addition
Cnucleophilic substitution, electrophilic addition
Dnucleophilic substitution, nucleophilic addition

✓ Correct answer

D: nucleophilic substitution, nucleophilic addition

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Topic
Halogen derivatives, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, May/June 2020 Paper 1 Variant 2, question 22.

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