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Edexcel A-Level Chemistry A2 19.5 The Preparation of Aromatic Amines By the Reduction of Aromatic Nitro Compounds Using Tin and Concentrated Hydrochloric Questions

For nitrobenzene or nitrobenzoic acids, use tin with concentrated HCl first; NaOH work-up may follow but is not part of the reduction reagent pair.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
A2

Exam points

  • State Sn or Fe with concentrated HCl for reducing aromatic nitro compounds.
  • Identify the conversion of nitrobenzene to phenylamine as reduction or redox.
  • Avoid mixing NaOH into the initial Sn/HCl reduction step when choosing reagents.

Edexcel A-Level Chemistry A2 19.5 The Preparation of Aromatic Amines By the Reduction of Aromatic Nitro Compounds Using Tin and Concentrated Hydrochloric Questions question 1

[Maximum number: 1]

The synthetic drugs of the 'Caine' family are used as local anaesthetics. Caine drugs prevent nerve activity by binding to sodium channel receptors in the lipid cell membranes of neurons.

benzocaine

benzocaine

procaine

procaine

lidocaine

lidocaine

articaine

articaine

Lidocaine can be prepared in the synthesis shown.

Step 1

Step 1

Step 3

lidocaine

lidocaine

Give the reagents for Step 2.

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