Chemistry - GOC Question with Solution | TestHub
ChemistryGOCRESONANCE AND MESOMERIC EFFECTMedium2 minQB
ChemistryMediumsingle choice
Which is not an example of resonance ?
(I) 
(II) 
(III) 
(IV) 
Options:
Answer:
B
Solution:
(I), (III) and (IV) move only pi electrons.
In (II) the + moves from the outside the ring to a ring carbon. That needs a hydride shift (an H atom changes position). It is a rearrangement, not resonance.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
⏱ 2mℹ️ Source: QB
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