Answer
a. False; b. False; c. True; d. False
Work Step by Step
Let's evaluate each statement:
a. The statement is false. Only PCl₅ and TeCl₄ have bond angles ~120°.
b. The statement is false. The bond angle in SO2 should be similar to the bond angle in CO2 or SCl2, not CS2. The correct statement would be:
"The bond angle in SO2 should be similar to the bond angle in CO2 or SCl2."
c. The statement is true: of the compounds CF₄, KrF₄, and SeF₄, only SeF₄ exhibits an overall dipole moment (is polar).
d. The statement is false. The central atoms in a molecule adopt a geometry of the bonded atoms and lone pairs about the central atom in order to minimize electron repulsions, not maximize them.
