Question

The shape of $I{F}_6^{-}$ is:

• A. trigonally distorted octahedron
• B. pyramidal
• C. octahedral
• D. square antiprism

Answer 1

The correct option is A trigonally distorted octahedron

The shape of $I{F}_6^{-}$ is trigonally distorted octahedron. The central iodine atom has 7 valence electrons. It gains one electron from negative charge. Out of 8 valence electrons, 6 are involved in formation of 6 $I-F$ bonds and one lone pair of electrons is present. 6 F atoms are present at 6 corners of distorted octahedron. The lone pair of electrons distorts the octahedral shape due to electron electron repulsion.