Aqueous solution of borax reacts with two mol of acids. This is because of :

Options

A. formation of 2 mole of `B(OH)_(3)` only
B. formation of 2 mole of `[B(OH)_(4)]^(-)` only
C. formation of 1 mole each of `B(OH)_(3)` and `[B(OH)_(4)]^(-)`
D. formation of 2 mol each of `[B(OH)_(4)]^(-)` and `B(OH)_(3)`, of which only `[B(OH)_(4)]^(-)` reacts with acid

Answer

D