1.1. This question is about esters. 

Complete the table to show how some common esters are formed.   

1.2. All of the esters in part (a) are formed via a condensation reaction. 

State the conditions needed for this reaction.

1.3. Esters can also be formed by the reaction of an acid anhydride and alcohol. 

Complete the equation to show the structure of the ester formed and the other product in the reaction below.

1.4. Suggest why esters are used in the manufacture of foods.