Distinguish between esterfication and saponification reaction with the help of the chemical equations for each.
Esterification reaction is opposite/reverse of saponification reaction.
In esterification, a carboxylic acid and an alcohol react to form ester in presence of acid.
RCOOH + R′OH →H+ RCOOR′ + H2O
Whereas, in saponification reaction an ester reacts with a strong base or an acid to give alcohol and carboxylic acid.
RCOOR′ + NaOH → RCOONa + R′OH