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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Suman Kumar
X is anti aromatic will be less stable among others. Now come to Y and Z. In Z pie bond is exist in four membered ring so large ring strain because as it deviate more from Sp2 hybridization (120°) while in Y both the pie bonds are in six member ring so the stability order will be Y>Z>X. Kindly accept my answer!