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Q.
The properties of carbonyl group
is suppressed the most in
NTA AbhyasNTA Abhyas 2020Organic Chemistry – Some Basic Principles and Techniques
Solution:
The resonance structures for RCOG are
or
Electron-release from G(H, $CH_{3},OCH_{3}$ or $NH_{2}$ ) to O stabilizes
by diminishing the electrophilic character of carbonyl carbon. Since degree of delocalization is maximum in case of $-NH_{2}$ , therefore, the properties of
is suppressed most in amides $\left(\right.RCONH_{2}\left.\right)$ .