Functional Group Table (R = H or organic group)

Alkene		carbon-carbon double bond
Alkyne		carbon-carbon triple bond
Aromatic		Arene (Benzene) group
Halide		Halo group(X=F, Cl, Br, or I)
Alcohol		hydroxyl group
Ether		alkoxy group
Aldehyde		aldehyde group {must be (C=O)H}
Ketone		keto group {must be C(C=O)C}
Carboxylic Acid		carboxyl group
Ester		ester group
Amide		amide group
Amine		amino group (At least one R=C)