,
strong oxidising agents and at elevated temperatures Their oxidation
involves carbon-carbon bond cleavage to afford a mixture of carboxylic
acids having lesser number of carbon atoms than the parent ketone The mild oxidising agents given below are used to distinguish
aldehydes from ketones:
(i) Tollens’ test:  On warming an aldehyde with freshly prepared
ammoniacal silver nitrate solution (Tollens’ reagent), a bright
silver mirror is produced due to the formation of silver metal The aldehydes are oxidised to corresponding carboxylate anion