Question

Which among the following pairs of halogen forms the interhalogen compound of the type \[\ce{XX^{'}_7}\]?

Options

• Cl and F

• I and F

• I and Cl

• Br and F

Answer 1

I and F

Explanation:

The interhalogen compound of type \[\ce{XX^{'}_7}\], iodine heptafluoride with the chemical formula IF₇, is made up of the halogen pairs iodine (I) and fluorine (F).

VSEPR theory predicts that it has an unusual pentagonal bipyramidal structure.