Which carboxylic acid is formed by acid hydrolysis of propanenitrile, CH₃CH₂CN?
Correct answer D. Propanoic acid
Explanation
Hydrolysis converts the –CN group into –COOH without changing the number of carbons. CH₃CH₂CN + 2H₂O + H⁺ → CH₃CH₂COOH + NH₄⁺. The nitrile carbon becomes the carboxyl carbon.
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