Carbonyl group has following resonating structures: (I) overset+C - overset-O (II) overset-C - overset+O (III) C = O The correct order of stability of these structures is:

Question

Carbonyl group has following resonating structures: (I) > overset+C - overset-O (II) > overset-C - overset+O (III) > C = O The correct order of stability of these structures is: (A) I > II > III (B) III > I > II (C) I > III > II (D) III > II > I

Tardigrade Admin · Accepted Answer

The resonating structure with minimum or no charge is more stable. Thus, the stability of (III) is maximum. The structure (I) is more stable than structure (II) as the negative charge is present on more electronegative atom.

Q. Carbonyl group has following resonating structures:
$(I) > C + - O - (II) > C - - O + (III) > C = O$
The correct order of stability of these structures is:

$I > II > III$

$III > I > II$

$I > III > II$

$III > II > I$

The resonating structure with minimum or no charge is more stable. Thus, the stability of $(III)$ is maximum. The structure $(I)$ is more stable than structure $(II)$ as the negative charge is present on more electronegative atom.

Q. Carbonyl group has following resonating structures: (I)>C+−O−(II)>C−−O+(III)>C=O The correct order of stability of these structures is:

I>II>III

III>I>II

I>III>II

III>II>I