Chemical reaction for reducing sugar

Reducing sugars, such as glucose and fructose, contain a free aldehyde or ketone group that can undergo oxidation. In a typical reaction, a reducing sugar is oxidized by an oxidizing agent, resulting in the formation of a corresponding acid and a change in the oxidation state of the sugar. For example, glucose can be oxidized to gluconic acid. This reducing property is utilized in tests like the Benedict's test, where the presence of reducing sugars leads to a color change in the reagent.