Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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Write structures of different isomeric amines corresponding to the molecular formula, C4H11N - Chemistry

(i) Write structures of different isomeric amines corresponding to the molecular formula, C4H11N

(ii) Write IUPAC names of all the isomers.

(iii) What type of isomerism is exhibited by different pairs of amines?

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Solution

(i), (ii) The structures and their IUPAC names of different isomeric amines corresponding to the molecular formula, C4H11N are given below:

(a) CH3-CH2-CH2-CH2-NH2

Butanamine (10)

(b) 

Butan-2-amine (10)

(c)

2-Methylpropanamine (10)

(d) 

2-Methylpropan-2-amine (10)

(e) CH3-CH2-CH2-NH-CH3

N-Methylpropanamine (20)

(f) CH3-CH2-NH-CH2-CH3

N-Ethylethanamine (20)

(g) 

N-Methylpropan-2-amine (20)

(h)

N,N-Dimethylethanamine (3°)

(iii) The pairs (a) and (b) and (e) and (g) exhibit position isomerism.

The pairs (a) and (c); (a) and (d); (b) and (c); (b) and (d) exhibit chain isomerism.

The pairs (e) and (f) and (f) and (g) exhibit metamerism.

All primary amines exhibit functional isomerism with secondary and tertiary amines and vice-versa

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APPEARS IN

NCERT Class 12 Chemistry Textbook
Chapter 13 Amines
Q 2 | Page 384
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