Question:
In semicarbazide, only one -NH₂ group is involved in the formation of semicarbazone.
In semicarbazide, only one -NH₂ group is involved in the formation of semicarbazone.
Updated On: Jan 13, 2026
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Solution and Explanation
In semicarbazide, the carbonyl group (-C=O) in aldehydes or ketones reacts with the -NH group. However, only the first -NH group is involved because the second -NH group is at-
tached to a nitrogen atom and is not available to react.
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