Because of the small size of boron atom and presence of only six electrons in its valence shell, B(OH)3 accepts a pair of electrons from OH- ion of H2O, releasing a proton.The reaction mechanism is:

Q. 6

Boric acid is an A. contains replaceable H+ ion

B. gives up a proton

C. accepts OH^- from water releasing proton

D. combines with proton from water molecule

Class 11th Chemistry - Exemplar

Answer :

Because of the small size of boron atom and presence of only six electrons in its valence shell, B(OH)₃ accepts a pair of electrons from OH^- ion of H₂O, releasing a proton.

The reaction mechanism is: