Consider the following statements and determine which are true andwhich are fals

Question

Consider the following statements and determine which are true andwhich are false.
A) Bond angles for IF6+ are 60°.
B) SeF4 is a polar molecule.
C) KrF4 is a polar molecule.
D) Silane (SiH4) is a non-polar molecule.
E) The formal oxidation state of an atom in amolecule (or molecular ion) can be calculated as:
(the number of valence electrons on a free atom)minus (half the number of electrons in bonds to that atom)minus (the number of unshared electrons assigned to theatom in the molecule)
F) SeF4 has a square planar structure
A) Bond angles for IF6+ are 60°.
B) SeF4 is a polar molecule.
C) KrF4 is a polar molecule.
D) Silane (SiH4) is a non-polar molecule.
E) The formal oxidation state of an atom in amolecule (or molecular ion) can be calculated as:
(the number of valence electrons on a free atom)minus (half the number of electrons in bonds to that atom)minus (the number of unshared electrons assigned to theatom in the molecule)
F) SeF4 has a square planar structure

Explanation / Answer

A. False, they are 90 degrees B. True C. False D. True E. True, I think. this is kind of confusing, but Ithink this is true. F. False, it is trigonal bibyramidal b/c 5 areas ofelectron density

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