Question

Give the names and the structural formula of the first three members of the homologous series of alkanes.

Answer 1

Sr. No.	Members	Structural formula
1.	Methane	\[\begin{array}{cc} \ce{H}\\ |\\ \ce{H - C - H}\\ |\\ \ce{H}\\ \end{array}\]
2.	Ethane	\[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\\ \ce{H - C - C - H}\\ |\phantom{....}|\\ \ce{H}\phantom{...}\ce{H}\\ \end{array}\]
3.	Propane	\[\begin{array}{cc} \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ |\phantom{....}|\phantom{....}|\\ \ce{H - C - C - C - H}\\ |\phantom{....}|\phantom{....}|\\ \ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\ \end{array}\]