Enzymes catalyzing a transfer of hydrogen between a pair of substrates, belong to class    

Hydrolases are a type of enzyme that acts as a biochemical catalyst by breaking chemical bond with water, resulting in the division of a larger molecule into smaller molecules. Esterase enzymes, such as lipases, phosphatases, glycosidases, peptidases, and nucleosidases, are examples of hydrolase enzymes. Hydrolases belongs to 1st class.