Answer to Question #290805 in Chemistry for Nafisah

Question

For each of the following compounds, draw its isomeric pair that represents a chain, positional and functional group isomerism:

a) CH3CH2CH=CH3

b) CH3CH(CH3)CH(CH3)CH3

c) CH3CH2CH2CH2CH2OH

d) CH3CH2COOH

e) CH2CH2CHO

Answer 1

Solution:

Chain isomerism: These isomers arise because of the possibility of branching in carbon chains.

Position isomerism: In position isomerism, the basic carbon skeleton remains unchanged, but important groups are moved around on that skeleton.

Functional group isomerism: In this variety of structural isomerism, the isomers contain different functional groups - that is, they belong to different families of compounds (different homologous series).

a) CH₃CH₂CH=CH₃

b) CH₃CH(CH₃)CH(CH₃)CH₃

с) CH₃CH₂CH₂CH₂CH₂OH

d) CH₃CH₂COOH

e) CH₂=CH₂CHO