${\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}+\underset{\left(\mathrm{excess}\right)}{{\mathrm{H}}_2\mathrm{O}}\to \underset{\left(\mathrm{glucose}\right)}{{\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6}+\underset{\left(\mathrm{fructose}\right)}{{\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6}$ Rate law is expressed as

increase in rate of reaction is maximum for the reaction having the maximum E_a. Rate doesn’t depends on excess quantity of reactant.