ORGANIC CHEMISTRY Chapter 2 Aldehydes and ketones both contain the carbonyl group(羰基)- a group in which a carbon atom has a double bond to oxygen C=0 The carbonyl group Aldehydes R-C-H Ketones R-C-RR-C-R Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 2 Aldehydes and ketones both contain the carbonyl group (羰基) — a group in which a carbon atom has a double bond to oxygen. C O The carbonyl group Aldehydes Ketones R C H O R C R' O R C R O