1. ELECTROMAGNETIC SPECTRUM: ABSORPTION SPECTRUM 2. ALCOHOLS 3. PHENOLS 4. ETHERS AND EPOXIDES 5. ALDEHYDES AND KETONES 6. CARBOXYLIC ACIDS 7. CARBOXYLIC ACID DERIVATIVES 8. ORGANIC COMPOUNDS OF NITROGEN (NITRO COMPOUNDS) 9. ORGANIC COMPOUNDS OF NITROGEN-AMINES 10. ORGANIC COMPOUNDS OF NITROGEN (AROMATIC DIAZONIUM COMPOUND)