Molecular Orbital Theory
Chemistry ⇒ Chemical Bonding and Structure
Molecular Orbital Theory starts at 11 and continues till grade 12.
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Calculate the bond order of the B2 molecule using molecular orbital theory.
Calculate the bond order of the C2 molecule using molecular orbital theory.
Calculate the bond order of the NO molecule using molecular orbital theory.
Describe the difference between bonding and antibonding molecular orbitals.
Describe the difference between the molecular orbital diagrams of N2 and O2.
Describe the significance of bond order in molecular orbital theory.
Explain why F2 is diamagnetic according to molecular orbital theory.
Explain why He2 molecule does not exist according to molecular orbital theory.
Which of the following correctly represents the order of energies of molecular orbitals for O2? (1) σ2s < σ*2s < σ2p < π2p < π*2p < σ*2p, (2) σ2s < σ*2s < π2p < σ2p < π*2p < σ*2p, (3) σ2s < σ*2s < π2p < π*2p < σ2p < σ*2p, (4) σ2s < σ*2s < σ2p < π2p < σ*2p < π*2p
Which of the following ions has the highest bond order? (1) O2+, (2) O2, (3) O2-, (4) O22-
Which of the following is a limitation of molecular orbital theory? (1) It cannot explain the paramagnetism of O2, (2) It is not applicable to polyatomic molecules, (3) It is mathematically complex, (4) It does not consider electron delocalization.
Which of the following is NOT an assumption of molecular orbital theory? (1) Atomic orbitals combine to form molecular orbitals, (2) Electrons are localized between two atoms, (3) Molecular orbitals are filled according to the Aufbau principle, (4) The number of molecular orbitals formed equals the number of atomic orbitals combined.
Fill in the blank: The antibonding molecular orbital is denoted by _______.
Fill in the blank: The molecular orbital formed by the head-on overlap of two p orbitals is called a _______ molecular orbital.
Fill in the blank: The molecular orbital formed by the sidewise overlap of two p orbitals is called a _______ molecular orbital.
Fill in the blank: The molecular orbital theory was developed by _______ and _______.
State whether the following statement is true or false: The bond order of O22- is less than that of O2.
State whether the following statement is true or false: The number of molecular orbitals formed is always equal to the number of atomic orbitals combined.
True or False: According to molecular orbital theory, the greater the bond order, the stronger the bond.
True or False: In molecular orbital theory, electrons are delocalized over the entire molecule rather than being localized between two atoms.
