Definition for UNSATURATED HYDROCARBONS 
  Hydrocarbons that contain double or triple carbon-carbon bonds
Definition for SATURATED HYDROCARBON  
Hydrocarbons that contain only single bonds. They are also called alkanes or paraffin hydrocarbons. 
    
Saturated Organic Compounds Unsaturated Organic Compounds  
These organic compounds contain single carbon-carbon   covalent bond.
These organic compounds contain at least one double   or triple covalent bond.                                                                                                              
 
Due to the presence of all single covalent bonds,   these compounds are less reactive.
Due to the presence of double and triple bonds,   these compounds are more reactive. 
Saturated compounds undergo substitution reactions.   Example:           Unsaturated compounds under go addition reactions.   Example:            
The number of hydrogen atoms is more when compared   to its corresponding unsaturated hydrocarbon. The number of hydrogen atoms is less when compared   to its corresponding unsaturated hydrocarbon.  
  Saturated Organic Compounds
Unsaturated Organic Compounds
These organic compounds contain single carbon-carbon covalent bond.
These organic compounds contain at least one double or triple covalent bond.
Due to the presence of all single covalent bonds, these compounds are less reactive.
Due to the presence of double and triple bonds, these compounds are more reactive.
Saturated compounds undergo substitution reactions.   Example:          
Unsaturated compounds under go addition reactions.   Example:          
The number of hydrogen atoms is more when compared   to its corresponding unsaturated hydrocarbon.
The number of hydrogen atoms is less when compared   to its corresponding unsaturated hydrocarbon.