Write the condensed structural formula of all isomers of hexane and name them

Isomers

Common name IUPAC name Text formula

normal hexane n-hexane hexane CH3 (CH2) 4CH3

isohexane 2-methylpentane (CH3) 2CH (CH2) 2CH3

3-methylpentane CH3CH2CH (CH3) CH2CH3

2,3-dimethylbutane (CH3) 2CHCH (CH3) 2