What is the electron pair arrangement around the central atom in the molecule if5?
a.) trigonal pyramidal
b.) square planar
c.) octahedral
d.) square pyramidal

The correct option is: C.) Octahedral

Explanation:

Iodine pentafluoride (IF₅) is an inorganic interhalogen compound in which the oxidation state of iodine is +5 and the oxidation state of fluorine is (-1).

In this molecule, iodine is sp³d² hybridized and covalently bonded to five fluorine atoms. So there are 5 bond pair of electrons and 1 lone pair of electron around iodine.

Thus the steric number = 6

According to the VSEPR theory, the electron pair arrangement of a molecule with steric number 6 is octahedral.

Therefore, electron pair arrangement around iodine in IF₅ molecule is octahedral.

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