Chemistry - GOC Question with Solution | TestHub

The $\mathrm{C}=\mathrm{O}$ bond is polarised (${\mathrm{C}}^{+}-{\mathrm{O}}^{-}$), leaving a cyclopropenyl cation ring with one $\mathrm{C}=\mathrm{C}$ (2π = 4n+2, n = 0). Aromatic.