Chemistry - GOC Question with Solution | TestHub

(A) deprotonating cyclopropene gives the anti-aromatic cyclopropenyl anion (4π), so cyclopropene is harder to deprotonate than cyclopentadiene : wrong. (B) deprotonating cyclopentadiene gives the aromatic cyclopentadienyl anion (6π), while benzene would give an unstabilised aryl anion : correct. (C) cycloheptatriene gives an 8π anion, but its $\mathrm{s}{\mathrm{p}}^3$ C-H is still far more acidic than a vinylic/aryl C-H of benzene : correct. Correct pairs : B and C.