Total number of lone pair of electrons in `I_(3)^(-)` ion is -

Explanation

`AX_(2)` (i) shape-linear, e.g., `BeCl_(2)`
(ii) shape-V-shaped e.g., `C Cl_(2)`
(iii) shape-V-shaped e.g., `H_(2)O`
`AX_(3)` (i) shape-trigonal planar, e.g., `BF_(3)`
(ii) shape-pyramidal, e.g., `NH_(3)`
(iii) shape-T-shaped, e.g., `ClF_(3)`.