Question

Which species has maximum number of lone pair of electron in central atom?

• A. $Xe{F}_4$
• B. $S{F}_4$
• C. $I_3^{-}$
• D. All species have same number of lone pair on central atom.

Answer 1

The correct option is C $I_3^{-}$

In $Xe{F}_4$, Xe has 2 lone pair .

In $S{F}_4$, S has 1 lone pair .

In $I_3^{-}$, I has 3 lone pair .

So, $I_3^{-}$ has the maximum number of lone pairs on central atom.