1.

Explain why the follwing system is not aromatic:

Answer»

SOLUTION :The ring contains ONE `sp^3` hybridised carbon. So it is not plannar. Moreover, the `pi` electrons outside the ring cannot fully conjugate with the `pi` electrons of the ring. HENCE it is not a fully conjugated cyclic SYSTEM containing 6 delocalised `pi` electrons. So it is not AROMATIC.


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