Chemistry - CHEMICAL BONDING Question with Solution | TestHub

Steric number for${\text{I}}_{\text{3}}^{-}\text{=}\frac{\text{1}}{\text{2}}\left[\text{7}\text{+}\text{2}-\text{0}\text{+}\text{1}\right]\text{=}\text{5}$
Hybridization of$\text{I}$in${\text{I}}_3^{-}$is sp³d.
Thus${\text{I}}_3^{-}$has trigonal bipyramidal geometry with linear shape.