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- #Chemistry
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Q 12.18 Give plausible explanation for each of the following:
(ii) There are two –NH2 groups in semicarbazide. However, only one is involved in the formation of semicarbazones.
Answers (1)
In Semicarbazide,
One of the group is involved in resonance with the carbonyl group, which is directly attached. Therefore, it cannot act as a nucleophile (its electrons are less available or less electron density at that
group). But the other
group is not participating in resonance, so it can act as nucleophile and attack on the carbonyl carbon of ketone and aldehyde.
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