Uses
1. Formic acid is used in leather tanning, textile dyeing and finishing.
2. Acetic acid is used in the manufacture of rayon and in plastics, in in rubber and silk industries, in cooking and in vinegar( a 8-10 % solution of acetic acid).
3. Benzoic acid and its salts are used as urinary antiseptics. 4. Formic acid can act as a reducing agent.
Derivatives of Carboxylic acids
These are obtained when-OH group of carboxylic acids is replaced by Cl,
NH2, OR ‟ and OCOR and are called respectively acid chloride, acid amide, ester and acid anhydride.