Jones reagent is used to oxidize secondary alcohols and primary alcohols to ketones and aldehydes. It is a commonly used oxidizing agent by organic chemists.
Jones reagent is made by dissolving chromium trioxide (CrO3) in aqueous sulfuric acid. It is a very strong oxidizing solution and can be used to convert a wide range of secondary and primary alcohols into carboxylic acids or ketones. However, it rarely oxidizes unsaturated bonds and is very toxic. It can be hazardous to humans and animals as well as the environment.