Among the following,the least stable resonanc | vedclass

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(A) The stability of resonance structures is determined by several factors: $1$. Structures with more covalent bonds are more stable. $2$. Structures

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(A) The stability of resonance structures is determined by several factors: $1$. Structures with more covalent bonds are more stable. $2$. Structures with complete octets for all atoms are more stable. $3$. Structures with negative charge on the more electronegative atom and positive charge on the less electronegative atom are more stable. $4$. Structures with minimum charge separation are more stable. In option $(A)$,there is a positive charge on the carbon atom adjacent to the nitrogen atom,which already bears a positive charge. This creates strong electrostatic repulsion between the adjacent positive charges,making this structure highly unstable compared to the others. Therefore,option $(A)$ is the least stable resonance structure.

Among the following,the least stable resonance structure is

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