4.       ORGANIC CHEMISTRY
4.1.    ORGANIC COMPOUNDS
a.       Occurrence of Organic Compounds 
b.      Sources of organic compounds 
4.2.    HYDRO CARBONS 
a.       Classification 
b.      Alkanes
c.       Alkenes
d.      Alkynes
e.       Benzene and Homologue
f.        Hazards of Hydrocarbons 
g.       Substituted Benzene
4.3.    DERIVATIVES OF HYDROCARBONS
a.       Halogen derivatives
4.4.    HYDROXYL COMPOUNDS
a.       Properties of hydroxyl compounds
b.      Synthesis of hydroxyl compounds
c.       Uses of Hydroxyl compounds
d.      Hazards of Hydroxyl Compound
4.5.    CARBONYL COMPOUNDS
a.       Structure and Nomenclature 
b.      Physical Properties
c.       Preparation