Question

Write structures of different isomeric amines corresponding to the molecular formula c4h11n

Answer 1

, (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-

Answer 2

The structures of different isomeric amines corresponding to the molecular formula $\[{C_4}{H_{11}}N\]$ are given in the image below.

Explanation:

• The compounds having the same molecular but different arrangement of atoms in space are called isomers.
• The molecular formula $\[{C_4}{H_{11}}N\]$ corresponds to amines.
• Amines are derivates of ammonia in which one or more hydrogen atoms are replaced by alkyl groups.
• By arranging the atoms in different ways, isomeric amines can be generated corresponding to the given molecular formula.
• The different isomeric amines corresponding to the molecular formula are:

1. Butanamine
2. Butan-2-amine
3. 2-Methylpropanamine
4. 2-Methylpropan-2-amine
5. N-Methylpropanamine
6. N-Ethylethanamine
7. N-Methylpropan-2-amine
8. N, N-Dimethylethanamine

• The structures of these amines are given in the image below.

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