Compound a, c6h12o2, was found to be optically active, and it was slowly oxidized to an optically active carboxylic acid b, c6h12o3, by ag(nh3)2. oxidation of a by anhydrous cro3 gave an optically inactive compound d that reacted with zn amalgam/hcl to give 3-methylpentane. with aqueous h2cro4, compound a was oxidized to an optically inactive dicarboxylic acid c, c6h10o4. give structures for compounds a, b, and c; do not specify stereochemistry.