Chemistry - Complete Pblock- Question with Solution | TestHub

Boric acid is an acid because its molecule accepts${\mathrm{OH}}^{(-)}$from water releasing proton. It acts as a Lewis acid because of the electron deficient nature of boron in boric acid.

$\mathrm{B}{\left(\mathrm{OH}\right)}_3+{\mathrm{H}}_2\mathrm{O}\to {\left[\mathrm{B}{\left(\mathrm{OH}\right)}_4\right]}^{\left(-\right)}\left(\mathrm{aq}\right)+{\mathrm{H}}^{\left(+\right)}\left(\mathrm{aq}\right)$