Final answer:
The carboxylic acid produced from the acid hydrolysis of butyl acetate is butanoic acid (also known as butyric acid).
Step-by-step explanation:
The carboxylic acid produced from the acid hydrolysis of butyl acetate is butanoic acid (also known as butyric acid). When butyl acetate undergoes acid hydrolysis, the ester bond is broken, resulting in the formation of butanoic acid and acetic acid.
The equation for the acid hydrolysis of butyl acetate can be written as:
CH3COOC4H9 + H2O → CH3COOH + C4H9COOH
So, the correct answer to the question is option a) Butanoic acid.