Butane has another structural isomer. Draw the two dimensional structure of the isomers and write its IUPAC name

Answer 1

The two structural isomers of butane are n-butane and isobutane.

1) n-Butane:
CH3 - CH2 - CH2 - CH3
IUPAC name: Butane

2) Isobutane:
CH3 - CH(CH3)2
IUPAC name: 2-Methylpropane