11. Consider three molecules: A, B, and C. Molecule A has a hybridization of sp3. Molecule B has two more effective pairs (electron pairs around the central atom) than molecule A. Molecule C consists of two σ bonds and two π bonds. Thus, which one of the following statements relating to A, B and C is incorrect?
(A) Molecule A has a tetrahedral arrangement of electron pairs.
(B) Molecule B has a square planar structure.
(C) Molecule B has a bond angle of 109.5°.
(D) The structure of HCN is similar to C.
(E) Molecule C is consistent with a linear arrangement of electron pairs exhibiting sp hybridization.