• Acrolein is the simplest member of the class of unsaturated aldehydes, formula , CH 2 =CHCHO.
• Acetone is a chemical compound of formula CH 3 COCH 3 .
• The most important group of alicyclic hydrocarbons are the terpenes of the ( general ) formula C 10 H 16 .
• Amide (acid) is a derivative of carboxylic acid with ( or of , or having ) the ( general ) formula R-(C=O)-NH 2 .