Question

Boric acid is polymeric due to
(a) its acidic nature (b) the presence of hydrogen bonds
(c) its monobasic nature (d) its geometry

Answer 1

(b) Boric acid is polymeric because of the presence of hydrogen bonds. In the given figure, the dotted lines represent hydrogen bonds.

In boric acid, planar $B{O}_3^{-3}$ units are joined by hydrogen bonds to give a layer structure which is polymeric in nature.