Step-by-step explanation:
Alkanes are the simple hydrocarbons that have only carbon and hydrogen atoms attached to each other through single bonds.
General chemical formula of an alkane is
, where n is any integer.
For example, if n = 5 then formula of the alkane will be as follows.

=

=

A suffix "-ane" is added in the name of an alkane. So, an alkane with five carbon atoms will be known as pentane.