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Q.
Which of the following compounds is aromatic?
AFMCAFMC 2012
Solution:
It is aromatic because the compound is cyclic and number of $\pi$ electrons is $2$ which is in according with the Huckel's rule $(4n-2) \pi$ when n=0 according to this number of $\pi$ electrons is $4\times0 -2 =2$
