Lesson Worksheet: Hybridization in Molecular Orbital Theory Chemistry

In this worksheet, we will practice explaining the origin of hybrid orbitals based on electron pair energies and the symmetries of molecular orbitals.

Q1:

In the valence bond theory description of methane, which of the following statements is not a valid justification for the use of sp3 hybrid orbitals?

  • AA C atom could not form four bonds without hybridization, as the energy for promoting a 2s electron to the 2p subshell is too large.
  • BThe s orbital of each H atom must overlap with the s orbital of the C atom and at least one p orbital.
  • COverlap of the H s orbitals with the three p orbitals of the C atom would produce bonds at 90 to each other.
  • DA tetrahedral bonding geometry with zero dipole moment is only possible if electron density is distributed equally between the four bonds.
  • EThe CH bonds are exactly equivalent, so they must be generated by orbitals of equal energy.

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