Question

CH - C(=O) - CH2 - COOH​

Answer 1

Explanation:

IUPAC name of is 3-hydroxy butanoic acid.

The parent chain or longest chain of the given compounds contains 4 carbon atoms. Thus the root word is "But". The functional group present in the structure are 'COOH' and 'OH', which is called as carboxylic acid and alcohol group.