As a result of the presence of the double bond alkanes are more reactive than alkanes.
For naming the alkenes prefix has to be selected according the number of carbon atoms same as naming alkanes. Names of the alkenes should end with 'ene'
e.g: name of the alkene having 3 carbon atoms: propene
same as in the alkanes, physical properties of alkens increases with the increase in the number of carbon atoms along a alkene homologous series.
General formula for alkenes is Cn H2n
e.g: formula of the alkene having 4 carbon atoms:
C4 H8
Drawing the structural formula of alkenes:
1. draw the carbon atoms in aline with space between them
2. draw a double bond between two carbon atoms
3. add hydrogen ton fill the four bonds around caron atoms with single bonds]
