Functional groups for science students.
Hydrocarbon
Compound of hydrogen and carbon only.
Alkane
Saturated hydrocarbon with single bonds.
Alkene
Hydrocarbon with a C=C double bond.
Alkyne
Hydrocarbon with a C≡C triple bond.
Alcohol
Contains –OH group.
Aldehyde
Contains –CHO group.
Ketone
Contains C=O within a carbon chain.
Carboxylic acid
Contains –COOH group.
Ester
Derived from acid + alcohol; often fragrant.
Amine
Contains nitrogen bonded to carbon/hydrogen.
Isomer
Same formula, different structure.
Polymer
Large molecule of repeating units.
Aromatic
Ring system with delocalized electrons (e.g. benzene).
Functional group
Atom group that determines reactivity.