Molecular Orbital Theory Quiz

Who developed the Molecular Orbital (MO) theory in 1932?

• Niels Bohr

• Erwin Schrödinger

• R.S. Mullikan

• F. Hund

What is the maximum number of electrons that can occupy each molecular orbital?

• Three

• One

• Four

• Two

Which type of molecular orbital has electrons that help hold atoms near each other?

• Bonding Orbitals

• Antibonding Orbitals

• Hybrid Orbitals

• Nonbonding Orbitals

What is the difference between Bonding and Antibonding molecular orbitals?

• Same energy levels vs. different energy levels

• Formed by subtraction overlap vs. addition overlap

• Low electron density vs. high electron density

• Formed by addition overlap vs. subtraction overlap

Which diatomic molecule has a bond order of 1.5 and is paramagnetic?

• O2-

• O2+

• O2

• O2-

What is the bond order of the B2 molecule?

• 2

• 1.5

• 0

• 1

Which molecule is unstable and does not exist due to a bond order of 0?

• F2

• Ne2

• Be2

• He2

How many unpaired electrons are present in the C2 molecule?

• 2

• 1

• 3

• 0

What is the magnetic property of the N2 molecule?

• Diamagnetic

• Antiferromagnetic

• Paramagnetic

• Ferromagnetic

Which molecule has a bond order of 3 and is diamagnetic?

• N2-

• N2-

• N2

• N2+