The general formula of saturated hydrocarbons is CnH2n+2, where, n=number of carbon atoms in a one molecule of hydrocarbon.
Example: Methane (CH4), Ethane (C2H6), Butane (C4H10)
Unsaturated hydrocarbons: The hydrocarbons in which atleast one double or triple bond is present along with single bonds are called unsaturated hydrocarbons.