Deck 8: Advanced Theories of Covalent Bonding

Question 1

Which statement best describe the structure of a carbonate anion? Outcome # 12) DOK 3)

A) The electron geometry of carbon in a carbonate anion is trigonal planar with a sp² 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.
B) The electron geometry of carbon in a carbonate anion is trigonal planar with a sp² 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.
C) The electron geometry of carbon in a carbonate anion is trigonal planar with a sp² hybridization and bond angles are <120°. There is a π-bond formed between a hybridized "C" p-orbital overlapping with an "O" p-orbital.

Answer 1

The electron geometry of carbon in a carbonate anion is trigonal planar with a sp² 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.

Question 2

Which element contains triple covalent bonds? Outcome # 9) DOK 1)

A) oxygen
B) nitrogen
C) iodine

Answer 2

nitrogen

Question 3

Based on valence bond theory, which statement best describes the electron geometry, bonding and hybridization of the central atom in carbon tetrachloride? Outcome # 12) DOK 3)

A) The electron geometry of carbon in carbon tetrachloride is tetrahedral with a sp³ hybridization. The C-Cl bond is of σ-character.
B) The electron geometry of carbon in carbon tetrachloride is tetrahedral with a sp² hybridization. The C-Cl bond is of σ-character.
C) The electron geometry of carbon in carbon tetrachloride is tetrahedral with a sp³ hybridization. The C-Cl bond is of π-character.

Answer 3

The electron geometry of carbon in carbon tetrachloride is tetrahedral with a sp³ hybridization. The C-Cl bond is of σ-character.

Question 4

Based on valence bond theory, which statement best describes the electron geometry and hybridization of the central atoms) in acetylene? Outcome # 12) DOK 2)

A) The electron geometry of the 2 carbons in acetylene is tetrahedral with a sp³ hybridization.
B) The electron geometry of the 2 carbons in acetylene is trigonal planar with a sp² hybridization.
C) The electron geometry of the 2 carbons in acetylene is linear with a sp hybridization.

Question 5

Based on valence bond theory, what is the hybridization of the central atoms) in C₂F₄? Outcome # 12) DOK 1)

A) both carbons are sp²
B) both carbons are sp³
C) one carbon is sp³ and the other carbon is sp²