The presence of the methyl variety of these organic compounds can be discovered with the iodoform test, and they can undergo the mixed Claisen condensation with an ester or have their alpha-carbon halogenated or alkylated, both of which are examples of the nucleophilic addition reactions they frequently undergo.  
They can be formed from the reaction of a Gilman reagent with an acyl chloride and from the cleavage of a 1,2 diol with periodic acid.  The presence of the methyl variety of these organic compounds can be discovered with the iodoform test, and they can undergo the mixed Claisen condensation with an ester or have their alpha-carbon halogenated or alkylated, both of which are examples of the nucleophilic addition reactions they frequently undergo.  FTP, name these compounds with a carbonyl attached to two alkyl groups, whose simplest example is acetone.
They can be formed from the reaction of a Gilman reagent with an acyl chloride and from the cleavage of a 1,2 diol with periodic acid.  
ketones