Functional groups Chemistry of organic compounds is determined by functional groups Functional group is an atom or group of atoms that are different from C

Alcohols: Functional group –OH Polar molecules dissolve in H2O

Smoke gets in my eyes: olefactory pleasures of aldehydes C=O is carbonyl group Aldehyde contains RCHO Formaldehyde is a preservative and a product of burning wood Acrolein is a product of barbequing Common smells and flavours

Carboxylic acids Commonly found in citrus fruits and any sour foods Formic acid present in ant and bee stings

Amines: the stench of death Amines contain NR1R2R3 Rotting fish Decaying flesh