Write true or false for the following statement:
Esters react in the presence of an acid or a base to give back the alcohol and carboxylic acid.

(TRUE) The statement is True.
This reaction is known as saponification (when using a base) or acid-catalyzed hydrolysis.
$1$. In the presence of an acid,the reaction is a reversible hydrolysis where the ester reacts with water to form the corresponding carboxylic acid and alcohol.
$2$. In the presence of a base (like $NaOH$),the reaction is known as saponification,which is irreversible. The ester reacts with the base to form a carboxylate salt (soap) and alcohol. The carboxylic acid can then be obtained by acidifying the salt.