Molecular Orbital Homework

The hybridization of the nitrogen atom in the cation NH2+ is:

• sp2

• sp3

• dsp

• sp

• none of these

Atoms that are sp2 hybridized form ____ pi bond(s).

• 0

• 1

• 2

• 3

• 4

The hybridization of the central atom in XeF₅⁺ is:

• sp

• sp²

• sp³

• dsp³

• d²sp³

The hybridization of the central atom in ClF₂⁺ is:

• sp

• sp²

• sp³

• dsp³

• d²sp³

The hybridization of the central atom in O₃ is:

• sp

• sp²

• sp³

• dsp³

• d²sp³

The hybridization of Cl in ClF₂⁺ is

• sp

• sp²

• sp³

• dsp³

• d²sp³

A π (pi) bond is the result of the

• overlap of two s orbitals

• overlap of an s orbital and a p orbital

• overlap of two p orbitals along their axes

• sidewise overlap of two parallel p orbitals

• sidewise overlap of two s orbitals

Which of the following statements is true?

• Electrons are never found in an antibonding MO.

• All antibonding MOs are higher in energy than the atomic orbitals of which they are composed.

• Antibonding MOs have electron density mainly outside the space between the two nuclei.

• None of the statements is true

Which of the following molecules contains the shortest C–C bond?

• C₂H₂

• C₂H₄

• C₂H₆

• C₂Cl₄

• C₂H₄ and C₂Cl₄

The electron configuration of a particular diatomic species is (σ2s)²(σ*2s)²(σ2p)²(π2p)²(π*2p)⁴. What is the bond order for this species?

• 1.5

• 1

• 0.5

• 0

• 2