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
Plan the conversion of aniline to 1,3,5-tribromobenzene. Write the major steps and explain the role of diazotisation.
Total: 4 marks
(a) Write the first reaction from aniline. (1 mark)
(b) Write the diazotisation step. (1 mark)
(c) Write the final replacement step. (1 mark)
(d) Explain why this route removes the amino group. (1 mark)
Something wrong with this item?