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  4. Number of acyclic structural isomers of the compound having the molecular formula C4H10O is

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Q. Number of acyclic structural isomers of the compound having the molecular formula $C_4H_{10}O$ is

KEAMKEAM 2016Alcohols Phenols and Ethers

Solution:

Total number of acyclic structural isomers $=7$

Due to $-OH$ group (4)

1. $CH _{3} CH _{2}- CH _{2} - CH _{2}- OH $

2.$CH_{3} - CH_{2} - \underset{\overset{|}{OH}}{CH} - \overset{OH}{CH_{3}}$

3. $CH_{3} - \underset{\overset{|}{CH_{3}}}{CH} - CH_{2} -OH$

4. $CH_{3} - \underset{\overset{|}{CH_3}}{\overset{\underset{|}{CH_3}}{C}} - OH $

Due to $- O -$ group, i.e. ethers $(3)$.

1. $CH _{3}- O - CH _{2} -CH _{2} -CH _{3}$

2. $CH _{3}- CH _{2}- O - CH _{2}- CH _{3}$

3. image

Total $= 4 + 3 = 7$