The order of stability of the resonance struc | vedclass

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Question

(A) Non-charged molecular species are the most stable. Therefore,structure $(I)$ has the maximum stability.In the charged resonating structures $(II)$

Vedclass · Accepted Answer

$I > II > III$

Vedclass · Answer

(A) Non-charged molecular species are the most stable. Therefore,structure $(I)$ has the maximum stability.In the charged resonating structures $(II)$ and $(III)$,the stability depends on the distance between the positive and negative charges.Structure $(II)$ has the negative charge at the ortho position relative to the positive charge,while structure $(III)$ has the negative charge at the para position.Since the distance between the opposite charges is smaller in $(II)$ than in $(III)$,the electrostatic attraction is stronger in $(II)$.Thus,the stability order is $I > II > III$.

The order of stability of the resonance structures given below is:

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