AQA A-Level Chemistry: Functional Groups

What is the functional group for an alkane?

Contains only C-H and C-C single bonds e.g. CH₃CH₃ (ethane)

What is the functional group for an alkene?

R-C=C-R e.g. H₂C=CH₂ (ethene)

What is the functional group for an alcohol?

R-OH e.g. CH₃OH (methanol)

What is the functional group for an ether?

R-O-R e.g. CH₃OCH₃ (dimethylether)

What is the functional group for an amine?

R-C-N-R e.g. CH₃NH₂ (methylamine)

What is the functional group for an aldehyde?

R-CH=O e.g. CH₃CH=O (ethanal)

What is the functional group for a ketone?

R-CO-R e.g. CH₃COCH₃ (propanone)

What is the functional group for a carboxylic acid?

RCOOH e.g. CH₃COOH (ethanoic acid)

What is the functional group for an ester?

RCOOR' e.g. CH₃COOCH₃ (ethyl ethanoate)

What is the functional group for an amide?

RCONR e.g. CH₃CONH₂ (ethanamide)

What is the functional group for a haloalkane?

R-X e.g. CH₃CH₂Cl (chloroethane)

What is the functional group for a nitrile?

R-C≡N e.g. CH₃CH₂CN (propanenitrile)

What is the functional group for an acyl chloride?

RCOCl e.g. CH₃CH₂CH₂COCl (butanoyl chloride)