Aromatic Compound Nomenclature ethylbenzene aminobenzene CH CH 3 Cl NH 2 NO 2 2 chlorobenzene nitrobenzene Br Br 1 6 2 Br 5 3 Br 4 1,2-dibromobenzene 1,3-dibromobenzene Orto-dibromo benzena meta-dibromo benzena