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Solution


Q.

Which of the following molecule/species is most stable                      [2024]
1  
2  
3  
4  

Ans.

(1)

Cyclic, planar compounds having completely delocalized (4n+2)π electrons (n = 1,2,3...)are aromatic. Aromatic compounds are highly stable. Cyclic, planar compounds having completely delocalized 4nπ electrons (n = 1,2,3...) are anti-aromatic. Anti-aromatic compounds are highly unstable.