Some Common Functional Groups alcohol C-OH alkane C-C ether C-O-C C-H alkene C=C aldehyde C-H alkyne CEC ketone C-H carbonyl acid aromatic groups OH ester amine amideSome Common Functional Groups: Some Common Functional Groups: C C C H alkane alkene C C C H alkyne C C C H aromatic alcohol C OH ether COC C O H aldehyde C O ketone C O OH acid C O ester O C O N amide N amine carbonyl groups