KnowraOxalic acidLinked fromLinked fromThe 8 pages that link to Oxalic acid, each with the reason it gives.All 8Related 4Narrower topic 1Compared with 3Formic acidCompared with: Unlike formic acid, it contains two carboxyl groups and two carbon atoms.Malonic acidCompared with: It has no intervening methylene group, so it lacks malonic acid's characteristic active carbon.Glyoxylic acidCompared with: It has two carboxyl groups where glyoxylic acid has one carboxyl and one aldehyde.