HSCH2 CH2 SH/H H Oxidation of Aldehydes by Silver Oxide: Reaction of simple aldehydes with aqueous Ag.0 in the presence of Nh, yields the corresponding carboxylic acid and metallic silver. The silver is generally deposited in a thin metallic layer which forms a reflective mirror on the inside surface of the reaction vessel The formation of this mirror forms the basis of a qualitative test for aldehydes called the Tollens Test metalic siler is deposited m a thin mirror coating Oxidation of aldehydes to form Carboxylic Acids: Reaction of simple aldehydes with acidic MnO, or CrO/H SO, yields the corresponding carboxylic acid. Aldehydes oxidize very easily and it is often difficult to prevent oxidation even by atmospheric oxygen Cro3,H (Jones'Reagent) or Na2Cr2O7 CH.COOHHO Oxidation of Ketones: Ketones are more resistant to oxidation but can be cleaved with acidic mnO. to yield carboxy lic acids. hexanedioic acidOxidation of Aldehydes by Silver Oxide: Reaction of simple aldehydes with aqueous Ag2O in the presence of NH3 yields the corresponding carboxylic acid and metallic silver. The silver is generally deposited in a thin metallic layer which forms a reflective "mirror" on the inside surface of the reaction vessel. The formation of this mirror forms the basis of a qualitative test for aldehydes, called the Tollens Test. Oxidation of Aldehydes to form Carboxylic Acids: Reaction of simple aldehydes with acidic MnO4 -, or CrO3/H2SO4 yields the corresponding carboxylic acid. Aldehydes oxidize very easily and it is often difficult to prevent oxidation, even by atmospheric oxygen. Oxidation of Ketones: Ketones are more resistant to oxidation, but can be cleaved with acidic MnO4 - to yield carboxylic acids