CAIE A Level Chemistry 9701 · Halogen compounds
A student wants to prepare chlorobenzene from benzene. Suggest a suitable reagent and catalyst for this reaction. In your answer, also explain why chlorobenzene is much less reactive than chloroethane towards nucleophilic substitution.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Suggest means: Apply what you know to an unfamiliar situation. There may be more than one acceptable answer. Reason from the principle you have learned to the new context, and say which principle you are using.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.