-CHO represents the functional group of aldehyde.
In aldehydes, the carbonyl group has one hydrogen atom attached to it together with either a 2nd hydrogen atom or a hydrogen group which may be an alkyl group or one containing a benzene ring.
Aldehydes are members of a class of organic chemical compounds represented by the general structural formula R-CHO. R may be hydrogen or a hydrocarbon radical–substituted or unsubstituted.
Listed below are examples of few aldehydes
- HCHO: Methanal
- CH3CHO: Ethanal
- CH3CH2O: Propanal