Carbylamine Test-Identification of primary amines
Lucas Test - Differentiation between 1∘,2∘ and 3∘ alcohols
Tollen's Test - Identification of Aldehydes
Phthalein Dye Test - Identification of phenols
Phenol on heating with phthalic anhydride in the presence of concentrated sulphuric acid forms a colourless condensation compound called phenolphthalein. On further reaction with dilute sodium hydroxide solution gives a pink colour fluorescent compound called fluorescein. Characteristic colours are produced by different phenolic compounds which can be viewed under white background.