Which of the following correctly explains the nature of boric acid in aqueous medium :

Options

A. `H_(3)BO_(3)overset(H_(2)O)rarr H_(3)^(+)O+H_(2)BO_(3)^(-)`
B. `H_(3)BO_(3)overset(2H_(2)O)rarr 2H_(3)^(+)O+HBO_(3)^(2-)`
C. `H_(3)BO_(2)overset(3H_(2)O)rarr 3H_(3)^(+)O+BO_(2)^(3-)`
D. `H_(3)BO_(3)overset(H_(2)O)rarr B(OH)_(4)^(-)+H^(+)`

Answer

D

Explanation

`H_(3)BO_(3)` is weak, Lewis monobasic acid and shows the given equilibrium.