Chemistry - GOC Question with Solution | TestHub

Loss of $C{l}^{-}$ leaves a cyclopropenyl cation with 2 π electrons (4n+2, n = 0), which is aromatic and further stabilised by the three cyclopropyl groups. Loss of $C{l}^{+}$ would leave a cyclopropenyl anion with 4 π electrons, which is anti-aromatic.