1. General formula: CnH2+1COOH Preparation: Ethanol oxidation process Example HCOOH, Methanoic acid CH3COO,Ethanoic acid C2H5COOH,propanoic acid C3H7COOH,Buthanoic acid Solute in water Colourless Liquid at room temperature Low boiling point Sharp odours Vineger Insecticides Plastic Uses of CARBOXYLIC ACIDS FunctionalGroup: Carboxyl (COOH) Physical properties Chemical reactions