Quiz 3 - Molecular Orbitals PDF

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Workshop Quiz 3 – Molecular Orbitals 1. Draw the molecular orbital energy level diagram for F2. How many electrons reside in the bonding molecular orbitals?

2. Arrange the following diatomic molecules in order of increasing stability of their 2p orbitals.

3. Sulfur dioxide has an sp2-hybridized sulfur atom. The expected bond angle is 120o, but is actually slightly smaller (119 o). Select the correct statement that explains the smaller bond angle.

A. All three hybrid orbitals on sulfur contain a little more p character than a typical sp2 orbital. B. The lone pair on sulfur resides in a hybrid orbital that has a little more s character than a typical sp2 orbital. C. The lone pair on sulfur resides in the p orbital that is orthogonal to the trigonal planar hybrid orbitals. D. The lone pair on sulfur resides in a hybrid orbital that has a little more p character than a typical sp2 orbital 4. Arrange the following hybrid orbitals in order of increasing electronegativity.

5. What type of orbital does the lone pair on nitrogen in acetonitrile reside in?

A. 2s

B. 2p

C. sp

D. sp 2

E. sp3

F. d

6. Select the best representation of the C-N  orbital in acetonitrile. Use the structure in problem 5.

7. How many sp3-hybridized atoms are there in the following structure?

8. Which of the following contains an sp2-hybridized carbon?

A. CH4

B. :CH3-

C. CH3CH3

D. +CH3

E. HCCH

F. CH3OH

9. Select the compound that contains the shortest carbon-carbon single bond.

10. Select the compound that will have the worst p orbital overlap in its  bond....