Name and write the structures of all isomers of the propyl and butyl alkyl groups.

Propyl and butyl groups are the alkyl groups formed by replacing the one hydrogen atom from their corresponding alkanes.

Propyl is formed from propane and has n-propyl and isopropyl alkyl isomers.

Butyl is from butane and has n-butyl, isobutyl, sec-butyl and tertiary butyl alkyl isomers.