Examine the following resonating structures o | vedclass

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(A) The stability of resonance structures is determined by the following rules:$1$. Structures with more covalent bonds are more stable.$2$. Structure

Vedclass · Accepted Answer

$I > II > III > IV$

Vedclass · Answer

(A) The stability of resonance structures is determined by the following rules:$1$. Structures with more covalent bonds are more stable.$2$. Structures with complete octets for all atoms are more stable.$3$. Neutral structures are more stable than charged structures.$4$. Negative charge on more electronegative atoms and positive charge on less electronegative atoms is more stable.Applying these rules:- Structure $I$ is neutral and has complete octets,making it the most stable.- Structure $II$ has a complete octet for all atoms,but it is charged.- Structure $III$ has an incomplete octet on carbon,making it less stable than $II$.- Structure $IV$ has a negative charge on carbon and a positive charge on oxygen,which is highly unstable due to electronegativity mismatch.Thus,the correct order of decreasing stability is $I > II > III > IV$.

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