Question

1. How will you prepare 

(a) Acetic anhydride and 

(b) Acetyl chloride from acetic acid? 

Write the reactions involved in each case. 

2. Why is the boiling point of an acid anhydride higher than the acid from which it is derived?

Answer 1

2. Acid anhydrides are bigger sized molecules than the corresponding acids, therefore have more surface area, more van der Waals’ forces of attraction and hence higher boiling points