10) The hybridization of the oxygen atom labeled y in the structure below is C-O-H bond angle is A) sp, 180 B) sp2,109.5 C) sp3,109.5 D) sp3d2,90 E) sp,90 11) The electron-domain geometry and molecular geometry of boron trifluoride are and respectively. A) octahedral, T-shaped B) trigonal bipyramidal, T-shaped C) tetrahedral, trigonal pyramidal D) trigonal planar, trigonal planar E) T-shaped, trigonal planar 12) Determine the electron geometry (eg), molecular geometry (mg), and polarity of SO3. A) eg-tetrahedral, mg-trigonal pyramidal, polar B) eg-tetrahedral, mg-tetrahedral, nonpolar C) egrtrigonal planar, mg-trigonal planar, nonpolar D) eg = trigonal bipyramidal, mg -trigonal planar, polar E) eg-trigonal pyramidal, mg=bent, nonpolar 13) Three monosulfur fluorides are observed: SF2,SF4, and SF6.O these, is/are polar. A) SF2 only B) SF2 and SF4 only C) SF4 only D) SF6 only E) SF2,SF4, and SF6 14) Draw the Lewis structure for the molecule CH3CH2CCH. How many sigma and pi bonds does it contain? A) 11 sigma, 0 pi B) 9 sigma, 1 pi C) 8 sigma, 3 pi D) 9 sigma, 2 pi E) 8 sigma, 2 pi