JEE Mains · Chemistry · STD 12 -8.1. Aldehydes and ketones
Given below are two statements :
Statement I: The condensation reaction between \(CH_3-CH=O\) and \(H_2N-NH-C(=O)-NH_2\) under optimum pH will produce \(CH_3-CH=N-N(H)-C(=O)-NH_2\).
Statement II: The molecule, \(Ph-CH(O-H)(O-CH_3)\) will generate \(Ph-CH=O\) in the presence of dilute acid.
In the light of the above statements, choose the correct answer from the options given below :
- A Both Statement I and Statement II are true
- B Both Statement I and Statement II are false
- C Statement I is true but Statement II is false
- D Statement I is false but Statement II is true
Answer & Solution
Correct Answer
(A) Both Statement I and Statement II are true
Step-by-step Solution
Detailed explanation
Statement I: Semicarbazide is \(H_2N-NH-C(=O)-NH_2\). The lone pair on the \(-NH_2\) group attached to the carbonyl carbon is involved in resonance with the \(C=O\) group, making it less nucleophilic. Therefore, the \(-NH_2\) group attached to the \(-NH-\) group acts as the…
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