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GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

GyanMul Prep · NEB +2 · Science · Grade 12

Chemistry (Science, Grade 12)

Everything on these tabs is Chemistry (Science, Grade 12) only, within NEB +2 Science · Grade 12.

Science · Grade 12 subjects

Chapter 16 of 21 · Chemistry (Science, Grade 12)

Amines

8 topics
Board exam — Organic chemistry, 33 marks across 10 chapters
3 solved questions

Ammonia with its hydrogens replaced: the basicity that ranks the three classes, the tests and the Hoffmann separation that tell them apart, and aniline's diazonium salt — the most useful intermediate in the syllabus.

Practise this chapter Read solved questions

Topics

What the syllabus defines for this chapter

1Nomenclature and classification; primary, secondary and tertiary amines
2Preparation by the reduction of nitro compounds, and by Hoffmann's bromamide reaction
3Preparation by Gabriel's phthalimide synthesis and by reductive amination
4Basic character of amines and the comparison of the three classes
5Distinguishing the classes: Hinsberg's test, nitrous acid and the carbylamine reaction
6Separation of a mixture of amines by Hoffmann's method
7Aniline: preparation, properties and uses
8Diazotisation; benzenediazonium chloride, coupling reactions and azo dyes