Title: Chapter 8: Advanced Theories of Covalent Bonding
Course: Test

Q: Based on valence bond theory, which statement best describes the electron geometry, bonding and hybridization of the central atom in carbon tetrachloride?
- The electron geometry of carbon in carbon tetrachloride is tetrahedral with a sp^3 hybridization. The C-Cl bond is of σ-character.
- The electron geometry of carbon in carbon tetrachloride is tetrahedral with a sp^2 hybridization. The C-Cl bond is of σ-character.
- The electron geometry of carbon in carbon tetrachloride is tetrahedral with a sp^3 hybridization. The C-Cl bond is of π-character.
A: The electron geometry of carbon in carbon tetrachloride is tetrahedral with a sp^3 hybridization. The C-Cl bond is of σ-character.

Q: Based on valence bond theory, which statement best describes the electron geometry and hybridization of the central atom(s) in acetylene?
- The electron geometry of the 2 carbons in acetylene is tetrahedral with a sp^3 hybridization.
- The electron geometry of the 2 carbons in acetylene is trigonal planar with a sp^2 hybridization.
- The electron geometry of the 2 carbons in acetylene is linear with a sphybridization.
A: The electron geometry of the 2 carbons in acetylene is linear with a sphybridization.

Q: Which statement best describe the structure of a carbonate anion?
- The electron geometry of carbon in a carbonate anion is trigonal planar with a sp^2 hybridization and bond angles are 120°. There is a π-bond formed between a non-hybridized “C” p-orbital overlapping with an “O” p-orbital.
- The electron geometry of carbon in a carbonate anion is trigonal planar with a sp^2 hybridization and bond angles are <120°. There is a π-bond formed between a non-hybridized “C” p-orbital overlapping with an “O” p-orbital.
- The electron geometry of carbon in a carbonate anion is trigonal planar with a sp^2 hybridization and bond angles are <120°. There is a π-bond formed between a hybridized “C” p-orbital overlapping with an “O” p-orbital.
A: The electron geometry of carbon in a carbonate anion is trigonal planar with a sp^2 hybridization and bond angles are 120°. There is a π-bond formed between a non-hybridized “C” p-orbital overlapping with an “O” p-orbital.

Q: Based on valence bond theory, what is the hybridization of the central atom(s) in C_2F_4?
- both carbons are sp^2
- both carbons are sp^3
- one carbon is sp^3 and the other carbon is sp^2
A: both carbons are sp^2

Q: Which element contains triple covalent bonds?
- oxygen
- nitrogen
- iodine
A: nitrogen