Question

Which species has the maximum number of lone pair of electrons on the central atom?

• A. $[Cl{O}_3{]}^{-}$
• B. $Xe{F}_4$
• C. $S{F}_4$
• D. $[I_3{]}^{-}$

Answer 1

The correct option is D $[I_3{]}^{-}$

$[Cl{O}_3{]}^{-}:s{p}^3$ hybridised and $1$ lone pair.

$X_e{F}_4:s{p}^3{d}^2$ hybridised and $2$ lone pairs.

$S{F}_4:s{p}^{3}d$ hybridized and $1$ lone pair.

$[I_3{]}^{-}:s{p}^{3}d$ hybridised and $3$ lone pairs.

Hence, option D is correct.