Pick out the incorrect statement

Options

A. The oxides of fluorine are properly called oxygen sapuong
B. In `SF_(4), 'S'` atom is in the state of `sp^(2)d^(2)`- hybridization
C. `SF_(6)` in highly unreactive towards hydrolysis.
D. `SF_(4)`, is a gas and has regular tetrahedral structure.

Answer

D

Explanation

`SF_(4)` has trigonal pyramidal structure (or irregular tetrahedral geometry) with one of equatorial positions occupied by a lone pair of electrons.

a) Since 'F' is more electronegative than 'O' atom, therefore, oxides of fluorine `("e.g., "F_2O and F_2O_2)` are properly called oxygen fluorides `("e.g. as "OF2_2 and O_2F_2)`
b) There are six electron pairs around the central 'S' atom. According to VSEPR theory, orientation of six electron pairs is octahedral. To accommodate six electron pairs in octahedral orientation, 'S' atom is `sp^3d^2" -hybridized "`
c) `SF_6`, is highly unreactive towards hydrolysis, because S atom is both coordinately saturated and sterically hindered.