IGCSE Chemistry 4.34C Addition polymers Topic Practice

This question is about alcohols, carboxylic acids and esters.

（c）Aspirin is a compound used to reduce pain．
Aspirin contains a carboxylic acid functional group and an ester functional group．

This is the structural formula of aspirin.

Draw a circle around the carboxylic acid functional group.

When ethanoic acid reacts with ethanol in the presence of concentrated sulfuric acid, one of the products is ester A.

This is the equation for the reaction.

Draw a circle around the functional group in ethanoic acid.