First slide

Orthoboric acid

Question

Number of moles of protons liberated by the aqueous solution containing 1 mole of H₃BO₃ is

Moderate

A

1
B

2
C

3
D

0

Solution

$B{\left( {OH} \right)_3} + {H_2}O\xrightarrow{{}}{[B{\left( {OH} \right)_4}]^ - } + {H^ + }$
H₃BO₃is not a protic acid and it is a lewis acid ,since it is accepting the electron pair.The liberated H⁺ is from water and not from boric acid.

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