Molecular Orbital Theory Quiz

What is the purpose of a trial function in molecular orbital theory?

• To solve the Schrödinger equation exactly

• To provide an educated guess for the solution of the Schrödinger equation

• To determine the exact energy levels of a molecule

• To predict the color of a molecule

What is the result of constructive interference between two 1s orbitals in H2?

• Formation of a delta orbital

• Formation of a sigma 1s bonding orbital

• Formation of a sigma 1s star orbital

• Formation of a pi orbital

How many electrons are in the bonding molecular orbital of H2?

• One

• Two

• Three

• Four

What is the bond order of the H2- ion?

• 2

• 1

• 1/2

• 0

Why is the H2- ion considered stable?

• It has a negative bond order

• It has a positive bond order

• It has no electrons in anti-bonding orbitals

• It has more electrons in anti-bonding orbitals

What is the bond order of the H2-2 ion?

• 2

• 1

• 1/2

• 0

Why does diatomic helium not exist in nature?

• It has a high bond order

• It has a zero bond order

• It has a negative bond order

• It has a positive bond order

What happens to the stability of H2+ compared to H2?

• It becomes less stable

• It remains the same

• It becomes unstable

• It becomes more stable

How does removing an electron from diatomic helium affect its stability?

• It remains unchanged

• It becomes unstable

• It becomes less stable

• It becomes more stable

What is the bond order of H2+?

• 0

• 1/2

• 1

• 2