The states of hybridisation of boron and oxygen atoms in boric acid `(H_3 BO_3)` are respecitivelty :

Options

A. `sp^(2) and sp^(2)`
B. `sp^(3) and sp^(3)`
C. `sp^(3) and sp^(2)`
D. `sp^(2) and sp^(3)`

Answer

D

Explanation

In boric acid, the steric number of `B` is three (`3` atoms `+0` lone pair). Thus, its hybridization is `sp^(2)`. The steric number of every oxygen atom is four (`2` atom `+2` lone pairs). Thus, its hybridization is `sp^(3)`.