Chemistry - GOC Question with Solution | TestHub

ChemistryGOCRESONANCE AND MESOMERIC EFFECTMedium2 minQB
ChemistryMediumsingle choice

C-1 : never break a single bond while drawing a resonance structure.

C-2 : never exceed the octet of a second-period atom (C, N, O).

For the curved-arrow move described below, which statement is correct ?

structure

In CH₃CH=CH-OH the C=C pi electrons are pushed to make a C=O bond with the oxygen, which keeps its two lone pairs and the O-H bond.

Options:

Answer:
B
Solution:

Oxygen would have a double bond, an O-H bond and two lone pairs, which is 10 electrons. C-2 is violated.

Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
⏱ 2mℹ️ Source: QB

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