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NEET levelSingle correct optionDifficulty 1 of 3co166

Propanenitrile, $CH X_{3} CH X_{2} CN$ , is refluxed with dilute hydrochloric acid for a long time. The organic product is

A $CH X_{3} CH X_{2} CH X_{2} COOH$
B $CH X_{3} CH X_{2} COOH$
C $CH X_{3} CH X_{2} CH X_{2} NH X_{2}$
D $CH X_{3} CH X_{2} CONH X_{2}$

Answer: B

Acid hydrolysis of a nitrile goes through the amide and ends at the carboxylic acid (with

NH X_{4} Cl

). The carbon count is unchanged, so

CH X_{3} CH X_{2} CN

gives propanoic acid.

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