Chemistry - GOC Question with Solution | TestHub
ChemistryGOCRESONANCE AND MESOMERIC EFFECTEasy2 minQB
ChemistryEasysingle choice
Which compound has the greater electron density on its oxygen atom ?
(a) 
(b) 
Options:
Answer:
A
Solution:
In both amides the nitrogen lone pair is pushed towards the carbonyl oxygen. In (b) the nitrogen lone pair is also drawn into the benzene ring, so less of it is available for the C=O group.
In (a) there is no competing delocalisation, so the oxygen of (a) has the greater electron density.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
⏱ 2mℹ️ Source: QB
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