Question

Draw the structures of isomers of butane. Write the IUPAC and common names of these isomers.

Answer 1

Sr. No.	Structure	IUPAC name	Common name
1.	\[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\phantom{....}|\phantom{....}|\\ \ce{H - C - C - C - C - H}\\ |\phantom{....}|\phantom{....}|\phantom{....}|\\ \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ \end{array}\]	Butane	n-butane
2.	\[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ \phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}\\ \ce{H - C - C - C - H}\\ \phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}\\ \ce{H}\phantom{...}|\phantom{...}\ce{H}\\ |\\ \ce{H}\\ \end{array}\]	2-Methyl propane	lso-butane