Question

The number of moles of acetic anhydride $\left(A{c}_{2}O\right)$ needed to react completely with sucrose, is:

Answer 1

From the structure of sucrose, it can be seen that it has 8 -OH groups and each -OH reacts with acetic anhydride. So, 8 moles of acetic anhydrides are required for one mole of sucrose.