A)
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Correct Answer: A
Solution :
[a] It has \[2\pi \] electrons and hence is aromatic. While all others have\[4\pi \]-electrons and hence are ant aromatic. For a molecule to be aromatic, the necessary conditions are: It should have single cyclic cloud of delocalized \[\pi \]- electrons above and below the plane of the molecule. It should be planar It should contain (4n + 2) n electrons Where n = 0,1, 2, 3 etc.You need to login to perform this action.
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