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30 solutions

Molecular Orbital Theory

Q. According to valence bond theory, it is true that benzene 1. is probably a very polar molecule 2. has two delocalized pi bonds, one on top of and one below the plane of the carbon atoms. 3. has a delocalized pi system formed by the combination of three pi bonds on carbon atoms. 4. contains carbon which are sp hybridized. 5. has a structure consisting of alternating single and double bonds.

Solved • Apr 1, 2020

Molecular Orbital Theory

Q. Which of the following is TRUE about nonbonding orbitals of the molecular orbital theory? 1. Nonbonding orbitals make the molecule less stable. 2. Nonbonding orbitals have no net overlap with other atomic orbitals. 3. Nonbonding orbitals give added stability to the molecule 4. Shared electrons are placed in nonbonding orbitals 5. Nonbonding orbitals are made from the overlap of bonding and antibonding orbitals.

Solved • Apr 1, 2020

Molecular Orbital Theory

Q. The bond order denotes 1. the order of filling of bonding vs. anti-bonding orbitals. 2. an estimate of the polarity or dipole moment of a bond. 3. the order that orbitals are filled in electron configurations. 4. an estimate of the strength of a bond. 5. the pattern in which Lewis dot structures of atoms combine to form bonds.

Solved • Apr 1, 2020

Molecular Orbital Theory

Q. Sigma and pi are among the kinds of molecular orbitals describing bonds between two atoms. A pi molecular orbital can be (bonding, bonding or antibonding) and (has, does not have) electron density along a line between the centers of the two atoms. 1. bonding; has 2. bonding or antibonding; does not have 3. bonding or antibonding; has 4. bonding; does not have

Solved • Apr 1, 2020

Molecular Orbital Theory

Q. Which of the following statements concerning molecular orbital theory is/are true? I) Bonding orbitals are equal in energy to their corresponding anti-bonding orbitals. II) Adding electrons to anti-bonding orbitals destabilizes molecules. III) Unlike when we fill atomic orbitals, we don't use Hund's Rule ti fill molecular orbitals. 1. I, III 2. II, 111 3. I, II, III 4. II only 5. I only 6. III only 7. I, II

Solved • Apr 1, 2020

Molecular Orbital Theory

Q. Use the MO diagram in Figure 7.16a in the textbook to describe the bonding in N2^+, N2 and N2^-. Which part of the three should be stable? a) N2^+ b) N2 c) N2^- d) N2^+ and N2^- e) N2 and N2^- f) All the structures

Solved • Mar 30, 2020

Molecular Orbital Theory

Q. Below are the π molecular orbitals of benzene. Rank them in order of increasing energy based on the number of nodes. Consider that the blue color indicates one phase and the red color indicates the other phase of the orbital. Rank from lowest energy to highest energy. To rank items as equivalent, overlap them.

Solved • Feb 25, 2020