Kinetic study of reaction may provide the means for the quantitative comparison of its reaction under varying condition and form the systematic kinetic studies the relative importance of many factors, which may influence reaction rates can be assessed. This book deals with kinetic chemistry of milk sugar that is disaccharide lactose formed from monosaccharides Glucose and Galactose. Oxidation is probably the most active research topic in the field of saccharides for industrial application.It presents detailed discussion of oxidation of reducing sugar Galactose by cerium in acidic medium. Reducing sugar exhibits metabolic oxidative degradation by means of some chemical oxidants. Sugar oxidation also plays wide spectrum of activities in various field of organic, analytical, medicinal and food chemistry. It has been therefore, thought worthwhile to study the kinetics of the oxidation of sugar to understand the stepwise mechanism of the reaction.