Problem : Give the hybridization and geometry of the starred (*) atoms in the molecules below.Solution (a) sp2, trigonal planar
(b) sp3, tetrahedral
(c) sp3, trigonal pyramidal
(d) sp3, bent
Problem : Allene has the following molecular structure: Give a complete valence bond picture of allene, including all σ and Π interactions. (Hint: allene is not a planar molecule.)Solution The center carbon is sp hybridized while the end carbons are sp2. The hydrogens on one end of the molecule are perpendicular to those on the other end.