Is COOH a Functional Group in its own Right?Watch
is COOH a functional group in its own right or is it composed of 2 functional group (i.e. an OH group and a C=O group attached together).
It's a carboxyllic acid functional group, not two functional groups (ie a ketone & alcohol). It gives the molecule properties that the other two functional groups don't have.
Think about it this way- if it didn't have COOH, it wouldn't be a carboxylic acid (and would thus have different properties of different homologous series(es), like alkanes, alkenes, alkanones, etc.)