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Solution


Q.

Relative stability of the contributing structures is:                       [2024]
1 (I) > (III) > (II)  
2 (III) > (II) > (I)  
3 (I) > (II) > (III)  
4 (II) > (I) > (III)  

Ans.

(3)

Neutral resonating structures are more stable than charged resonating structures. Amongst charged resonating structures, those carrying negative charge on more electronegative atom and positive charge on less electronegative atom are more stable.