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NEET levelSingle correct optionDifficulty 1 of 3si113

Ethanamide is heated with $Br X_{2}$ and aqueous $KOH$ . The organic product is

A $CH X_{3} CH X_{2} NH X_{2}$
B $CH X_{3} COONH X_{4}$
C $CH X_{3} NH X_{2}$
D $CH X_{3} NHCH X_{3}$

Answer: C

This is the Hofmann bromamide degradation, in which

RCONH X_{2}

gives

RNH X_{2}

with one carbon less.

CH X_{3} CONH X_{2}

gives

CH X_{3} NH X_{2}

(methanamine) and the carbonyl carbon is lost as carbonate.

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