Answer:
Since the formula of the functional group is not given in the question, here are possible answers; If it is;
1. -COOH or -CO2H, it is an organic acid
2. -COOR, it is an ester
3. RC=O, it is a ketone
4. HC=O, it is an aldehyde
Note: Check the attachment below
Explanation:
The functional group of an organic compound is a specific group of atoms or bonds within a compound that is responsible for the characteristic chemical reactions of that compound.
The most common functional groups are:
Carbonyls (C=O); which includes the aldehydes, HC=O, and ketones, RC=O
Alcohols (-OH),
Carboxylic (organic) acids (COOH),
Edters (COOR), and
Amines (NH2).
