NEET Chemistry Preparation MCQ Question
Which of the following statements about the preparation of amines is correct?
Reduction of nitriles yields primary amines, increasing the carbon chain length by one.
Alkylation of amines requires a strong base to produce only primary amines.
Ammonolysis leads to the exclusive formation of secondary amines in all cases.
Acylation of amines produces amides by replacing the hydrogen in the –NH2 group.
Correct Answer
Detailed Explanation
Reduction of nitriles with lithium aluminium hydride leads to primary amines and can add a carbon atom to the amine, as stated in the NCERT context. Alkylation does not guarantee only primary amines, and ammonolysis does not exclusively yield secondary amines. Acylation replaces the hydrogen atom of the amine with an acyl group, forming amides.
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