The solubility decreases
with increasing number of carbon atoms Higher
carboxylic acids are practically insoluble in water due to
the increased hydrophobic interaction of hydrocarbon
part Benzoic acid, the simplest aromatic carboxylic acid
is nearly insoluble in cold water Carboxylic acids are
also soluble in less polar organic solvents like benzene,
ether, alcohol, chloroform, etc