Consider the following three resonance struct | vedclass

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(A) The stability of resonance structures is determined by the following rules:$1$. Neutral structures are more stable than charged structures.$2$. St

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$II > I > III$

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(A) The stability of resonance structures is determined by the following rules:$1$. Neutral structures are more stable than charged structures.$2$. Structures with a complete octet for all atoms are more stable.$3$. Negative charge on a more electronegative atom is more stable.Structure $II$ is a neutral molecule where all atoms have complete octets,making it the most stable.Structure $I$ has a positive charge on carbon and a negative charge on oxygen. Oxygen is more electronegative than carbon,so having a negative charge on oxygen is relatively stable.Structure $III$ has a negative charge on carbon and a positive charge on oxygen. Having a positive charge on a highly electronegative atom like oxygen is highly unstable.Therefore,the stability order is $II > I > III$.

Consider the following three resonance structures:
The correct order of their stabilities is:

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Consider the following three resonance structures:The correct order of their stabilities is: