DEPARTMENT OF CHEMISTRY GOVERNMENT DEGREE COLLEGE-PUTTUR SYSTAMATIC IDENTIFICATION OF UNKNOWN ORGANIC COMPOUNDS EXPERIMENT OBSERVATION INFERENCE I. Preliminary examinations: 1) Physical state Solid Carbohydrates, Aromatic carboxylic acids Liquid Low m.wt. Aldehydes, phenols, acids etc. 2) Colour Brown/red Phenol (Or) Amines Colour less Aldehydes, Ketones, Carbohydrates, Acids etc. 3) Odour Fishy odour Amines Phenolic odour Phenols Almond smell Aromatic aldehydes Sweet smell Ketones Strong smell ...