(a) The fact that the BCl3 molecule is planar means that the B atom is which of the following? unhybridized sp3 hybridized sp2 hybridized sp hybridized Hint (b) Hybridizing one s atomic orbital and one p atomic orbital would not yield which of the following? a linear geometry 2 equivalent hybrid orbitals sp2 hybridization a 180° angle Hint (c) Which combination of hybrid orbitals and electron pair geometries is incorrect? sp2 = trigonal planar sp3 = tetrahedral sp3d = square planar sp3d2 = octahedral Hint (d) Which of the following statements is true concerning sp3d hybrid orbitals? One s atomic orbital, three p atomic orbitals and 2 d atomic orbitals combine to make sp3d hybrid orbitals. The resulting angles of sp3d hybrid orbitals are 90° and 109.5° Trigonal bipyramidal geometry is a result of sp3d hybrid orbitals. There are four equivalent sp3d hybrid orbitals produced. Hint (e) What is a common feature of sp, sp2, sp3, sp3d, and sp3d2 hybrid orbitals? They all incorporate at least one s atomic orbital and one p atomic orbital. There are at least 3 equivalent hybrid orbitals of each type. They all only use s atomic orbitals. They all use at least s atomic orbital, one p atomic and one d atomic orbital.