A-LevelChemistryHalogen derivatives9701/12 · May/June 2018 · Q251 Mark

When warm water is added to halogenoalkane X, an SN1 reaction occurs. AgNO3(aq) is then added; a yellow precipitate is formed. What could be X?

A1-chlorobutane

B1-iodobutane

C2-chloro-2-methylpropane

D2-iodo-2-methylpropane

✓ Correct answer

D: 2-iodo-2-methylpropane

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Topic: Halogen derivatives, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2018 Paper 1 Variant 2, question 25.

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