Alkane:
1. Alkanes in which the carbon atoms are linked to each other only by single bonds.
2. The general formula of an alkane is CnH2n + 2
3. They are chemically less reactive.
Alkene:
1. Alkenes in which carbon atoms are linked to each other by double bonds.
2. The general formula of an alkene is CnH2n.
3. They are chemically more reactive.