The functional groups are groups of atoms that replace atoms on hydrocarbons. Functional groups permit complex organic molecules to be built from simple hydrocarbon starting molecules. A few of the more significant functional groups are listed in the table below.
Functional group Formula
alcohol R-OH
amino R-NH2
aldehyde R-CHO
ketone R-CO-R
carboxylic acid R-COOH
Classify the organic compounds by their functional group.
1.HOCH2CH2CH3
2.CH3CH2COOH
3.CH3CH2CH2CHO
4.CH3COCH3
5.C6H5NH2
The groups are Alcohol, Amine, Carboxylic acid, Ketone and Aldehyde.