Chemistry - GOC Question with Solution | TestHub
ChemistryGOCRESONANCE AND MESOMERIC EFFECTEasy2 minQB
ChemistryEasysingle choice
Which of the following compounds is not resonance stabilized ?
(A) 
(B) 
(C) 
(D) 
Options:
Answer:
C
Solution:
(A) is an allyl anion and (B) is an enolate. (D) is an ester (O lone pair conjugated with C=O).
In (C) the carbanion is at a bridgehead carbon, which would have to be sp² in the C=C of the enolate form. That violates Bredt's rule, so there is no resonance.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
⏱ 2mℹ️ Source: QB
Doubts & Discussion
Loading discussions...
