Exam 11: Chemical Bonding II: Additional Aspects

Find the correct statements about the bonding in methane, CH₄. I. The carbon s and p orbitals combine to form four equivalent sp3 orbitals II. All C-H bonds have the same strength III. Molecular geometry is different from electron group geometry IV. Four C sp3 orbitals combine with the s orbitals of the hydrogens to form bonds

Which is the correct molecular orbital diagram for carbon monoxide?

Which statement regarding VB theory is INCORRECT?

The structure of aspirin is given below. Which set of hybrid orbitals best describes the O-C bond, labeled "a", "b", in aspirin?

The inclusion of a small amount of aluminum in a crystal of pure germanium yields what kind of semiconductor?

Which of the following carbon molecules has sp hybridization?

The double covalent bond between two carbon atoms in ethylene (C₂H₄):

A triple bond is two sigma bonds and one pi bond.

Which of the following could act as a p-type semiconductor?

How many π-electrons are there in S₂O where S is the central atom?

For the molecule

Which of the following involves delocalized π bonds?

If the HCOO- ion is described using delocalized electrons, why can the oxygen atoms not have sp3 hybrids?

For XeF4, what are the dipole moment orientation, hybridization on the central atom, and the number of lone pairs on the central atom?

The HCOO- ion can be described by using delocalized electrons. What is the hybridization of the C atom?

Choose the INCORRECT statement about HCN.

The description of covalent bond formation as a region of high electronic charge density resulting from overlap of atomic orbitals between the two bonded atoms is referred to as:

Which combination of hybrid orbital descriptions and electronic geometry descriptions is INCORRECT?

A σ bond:

How many σ bonds and how many π bonds are present in the carbonic acid molecule, H₂CO₃?