Acid hydrolysis of sucrose is a

It is an example of pseudo unimolecular reaction where molecularity $\geq 2$ but order of reaction is one. Rate $=k[$ Sugar $]$\left[\mathrm{H}_2 \mathrm{O}\right]$In the reaction, water is present in excess and its concentration is taken to be constant, thus the reaction becomes independent of$\left[\mathrm{H}_2 \mathrm{O}\right] and is pseudo first order.