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Carbonyl group has following resonating ...

Carbonyl group has following resonating structures
(I)
The correct order of stablity of these structures is

A

`(i) gt (ii) gt (iii)`

B

`(iii) gt (i) gt (ii)`

C

`(i) gt (iii) gt (ii)`

D

`(iii) gt (ii) gt (i)`

Text Solution

Verified by Experts

The correct Answer is:
C
The resonating structure with minimum or no charge is more stable. Thus, the stability of structure (i) is maximum. As the negative charge is present on more electronegative oxygen atom {as in structure (iii)}. (iii) is more stable than structure (ii).
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