Long answer·Standard multi-step (3/5)·No calculator
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
A student has to prepare nitrobenzene and benzenesulphonic acid from benzene in two separate reactions.
Total: 5 marks
(a) Give the reagent mixture for nitration. (1 mark)
(b) Name the nitration product. (1 mark)
(c) Give the reagent used for sulphonation. (1 mark)
(d) Name the sulphonation product and state the reaction type common to both reactions. (2 marks)
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