Chemistry - GOC Question with Solution | TestHub

ChemistryGOCRESONANCE AND MESOMERIC EFFECTMedium2 minQB
ChemistryMediumsingle choice

Which oxygen atom has the greater electron density in methyl acetate ?

structure

Options:

Answer:
A
Solution:

The lone pair on the ester oxygen is delocalised into the carbonyl group (+R), so that oxygen carries a partial positive character and its electron density falls.

In the same resonance the carbonyl oxygen gains negative charge, so the carbonyl oxygen has the greater electron density.

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

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