Question

The geometry of $S$ in $S{F}_6$ is:

• A. Octahedral
• B. Trigonal bipyramidal
• C. Square pyramidal
• D. Pentagonal planar

Answer 1

The correct option is A Octahedral

Steric Number $\left(x\right)$ = $\frac{1}{2}\left(s+v-q\right)$.
where, s = number of monovalent surrounding atoms
v = number of valence electrons on the central atom
q = charge (with sign)

In case of $S{F}_6$, s = 6, v = 6, q = 0 Hence, x = 6
$\therefore$ Hybridisation becomes $s{p}^3{d}^2$ and geometry is octahedral.