Question

Why is boric acid is a protic acid

Answer 1

Protonic acid are those acids which ionizes in solution and produce protons .

But in case of B(OH)3 , boric acid instead of donating proton it accepts electrons of OH- which produces due to ionisation of water into H + and OH- hence we can say it act as a acid and proton is remove from water instead of boric acid.

Answer 2

$\huge\mathfrak{Q{\underline{\underline{\textbf{\red{uestion :}}}}}}$


Boric acid is a protic acid or not..?



$\huge\mathfrak{A{\underline{\underline{\textbf{\red{nswer :}}}}}}$


Boric acid can't release H+ ion or proton. So, it is not a protic acid.

But it is electron deficient. So, can exist in hydrated form and regarded as Lewis acid...

$H_{3}BO_{3}$ --X--> $H_{2}BO_{3}^{-}$ + H+

$B(OH)_{3}\:+\:H-OH$ ----> $[B(OH)_{4}]^{-}$ + H+


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