Aldehydes and Ketones Both contain the carbonyl group Cc-o; The carbonyl group Aldehydes have one carbon attached to the carbonyl group or RCHO R may also be H R Ketones have two organic groups attached to the carbonyl group 2 or RCOR: or RCOR R R The carbonyl carbon is sp2 hybridized It is trigonal planar and has bond angle about 1200 H,121° H1219 – Aldehydes and Ketones • Both contain the carbonyl group • Aldehydes have one carbon attached to the carbonyl group • Ketones have two organic groups attached to the carbonyl group • The carbonyl carbon is sp2 hybridized – It is trigonal planar and has bond angle about 120o