ORGANIC CHEMISTRY Chapter 12 Hydrogen content increases O [ R-C-H R-CH OH reduction Aldehyde Alcohol Oxygen content decreases R-CHo OH R-CH reduction Alcohol Alkane Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 12 Hydrogen content increases C O R H Aldehyde reduction [H] R CH2 OH Alcohol reduction [H] R CH2 OH Alcohol R CH3 Alkane Oxygen content decreases