Chemistry Class 12 NCERT Solutions: Chapter 13 Amines Part 3

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Q: 8. Write structures of different isomers corresponding to the molecular formula, . Write IUPAC names of the isomers which will liberate nitrogen gas on treatment with nitrous acid.

Answer:

The structures of different isomers corresponding to the molecular formula, are given below:

(A)

(B)

Propan-2-amine (1°)

(C)

N-Methylethanamine

(D)

N,N,-Dimethylmethanamine (3°)

amines, (a) propan-1-amine, and (b) Propan-2-amine will liberate nitrogen gas on treatment with nitrous acid.

Q: 9. Convert

(i) 3-Methylaniline into 3-nitrotoluene

(ii) Aniline into 1,3,5-tribromobenzene.

Answer:

(i)

Q 9 i 3-Methylaniline into 3-nitrotoluene

Q 9 I 3-Methylaniline Into 3-Nitrotoluene

Q 9 i 3-Methylaniline into 3-nitrotoluene

(ii)

Q 9 ii Aniline into 1, 3, 5-Tribromobenzene

Q 9 Ii Aniline Into 1, 3, 5-Tribromobenzene

Q 9 ii Aniline into 1, 3, 5-Tribromobenzene