Chemistry - GOC Question with Solution | TestHub
ChemistryGOCRESONANCE AND MESOMERIC EFFECTMedium2 minQB
ChemistryMediumsingle choice
The most stable canonical structure among the given structures is :
(I) 
⟷ (II) 
⟷ (III) 
Options:
Answer:
C
Solution:
Two factors decide : more bonds, and more atoms with a complete octet.
I has 7 bonds (C=C and ring bonds), the C⁺ atom has only 6 electrons. II also has an incomplete carbon octet. III has one more bond (the C=O⁺ double bond) and every atom has an octet.
Stability : III > I = II.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
⏱ 2mℹ️ Source: QB
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