organic functional groups

Alkane

C-C (single bonds only)

Alkene

C=C

Alkyne

C≡C

Benzene (aryl)

Six-carbon ring with alternating double bonds

Alcohol

C-O-H

Ketone

C-C(=O)-C

Carboxylic acid

C(=O)-O-H

Amine

C-N

Amide

C(=O)-N

Nitrile

C≡N

Ether

C-O-C

Aldehyde

C(=O)-H

Ester

C(=O)−O

alkane

alkene

alkyne

benzene (aryl)

alcohol

ketone

carboxylic acid

amine

amide

nitrile

ether

aldehyde

ester