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Solution


Q.

The correct stability order of the following species/molecules is:                   [2025]
1 p>q>r  
2 q>p>r  
3 q>r>p  
4 r>q>d  

Ans.

(3)

Cyclooctatetraene adopts non planar tub shaped structure to avoid anti aromaticity. So it is non aromatic. Thus stability order of given compounds is:

q (aromatic) > r (non aromatic) > p (anti aromatic)