Classification of Alkanoic Acids

They are classified based on the number of carboxyl groups per molecule.

1. Monocarboxylic acids – They have one carboxyl group per molecule.
e.g. CH3COOH i.e. ethanoic acid

2. Dicarboxylic acids – They have two carboxyl groups per molecule.
e.g. ethanoic acid
C – OOH
C – OOH

3. Tricarboxylic acids – They have three carboxyl groups per molecule. E.g. 2 – hydroxy propane – 1,2,3, – tricarboxylic acid.

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