Concept:Hydrogen cyanide and hydroxylamine react with aldehydes and ketones by addition, but not with alkanoic acids.Explanation:Alkanals and alkanones react with HCN to form cyanohydrins.They also react with hydroxylamine, NH2OH, to form oximes.Alkanoic acids have a carboxyl group, but their carbonyl carbon is deactivated by resonance.So alkanoic acids do not undergo the characteristic addition reactions with HCN or NH2OH.Answer:D. Alkanoic Acid.