Illustrated Glossary of Organic Chemistry

Alkyl halide (halo alkane): A functional group characterized by a halogen atom (fluorine, chlorine, bromine, or iodine) bonded to an sp³ carbon atom.


Ethyl fluoride, a typical primary (1^o) alkyl fluoride.		Tert-butyl chloride, a typical tertiary (3^o) alkyl chloride.		2-Bromo propane, a typical secondary (2^o) alkyl bromide.		Iodo methane, a typical methyl alkyl iodide

Bromobenzene is not an alkyl halide because its halogen atom (bromine) is bonded to an sp² carbon of a benzene ring.