Chemistry - GOC Question with Solution | TestHub
ChemistryGOCRESONANCE AND MESOMERIC EFFECTEasy2 minQB
ChemistryEasysingle choice
In the following pair, which species is more stable ?)
(a) 
(b) 
Options:
Answer:
D
Solution:
In (b) the carbanion is directly next to the C=O group, so the charge is delocalised onto oxygen by resonance (an enolate). In (a) a CH₂ separates the carbanion from the C=O, so there is no resonance. (b) is more stable : a b.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
⏱ 2mℹ️ Source: QB
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