Definition, Meaning & Synonyms
functional group
Noun
/ˈfʌŋkʃənl ɡruːp/
Definition
A functional group is a specific group of atoms within a molecule that is responsible for the characteristic chemical reactions of that molecule.
Examples
- Alcohols contain a hydroxyl functional group (-OH).
- Amino acids are characterized by the presence of both an amine group (-NH₂) and a carboxyl group (-COOH).
- Carboxylic acids have a carboxyl functional group (-COOH) that gives them their acidic properties.
Meaning
Functional groups generally determine the properties and chemical behavior of organic compounds.
Synonyms
- Reactive group
- Chemical group
