Question

Which of the following molecule having perfect tetrahedral shape, according to VSEPR theory?

• A. $S{O}_2{F}_2$
• B. $S{O}_4^{2-}$
• C. $S{O}_3$
• D. $S{F}_4$

Answer 1

The correct option is B $S{O}_4^{2-}$

A) $S{O}_2{F}_2$ is $s{p}^3$ hybridized. However, since repulsions between double bonds are greater than repulsions between single bonds, the structure will be distorted tetrahedral.


B) $S{O}_4^{2-}$ is $s{p}^3$ hybridized with perfectly tetrahedral shape.


c) $S{O}_3$ is $s{p}^2$ hybridized and has trigonal planar shape.


d) $S{F}_4$ is $s{p}^{3}d$ hybridized and has see saw shape with lone pair occupies the equatorial position.