Esters, fats and oils Esters are formed in condensation reactions and broken by hydrolysis ... and are hydrolysed by our bodies. Aldehydes and ketones are compounds with carbonyl groups that ...

Aliphatic aldehydes and reducing sugars will form a yellow-to-red precipitate with Benedict's reagent, causing the blue solution to appear green-to-red. This reaction can be used as a test for such ...