IB skill practice

Explain electrophilic substitution in aromatic systems

Paper 1, Paper 2 5 marks Difficulty 5

Aromatic nitration electrophile

A nitration mechanism in a Auckland synthesis workshop uses concentrated nitric and sulfuric acids. Identify the electrophile that attacks benzene. Enter the answer and choose the interpretation that matches the HL chemistry evidence.

Worked practice: chemistry evidence and answer

Use the chemical evidence first, then enter the result and interpretation that match it.