H3BO3 is - Infinity Learn by Sri Chaitanya

A
monobasic and weak Lewis acid.
B
dibasic and weak Lewis acid.
C
monobasic and strong Lewis acid.
D
tribasic and weak Bronsted acid.

Solution:

The boron atom in boric acid, H₃BO₃ is electron deficient, thereby it acts as a Lewis acid with one vacant p-orbital. There is no d-orbital in boron atom, hence it can accommodate only one electron pair in its vacant p-orbital. This implies that boric acid is a weak Lewis acid.

Boric acid is a monobasic acid which undergoes ionization with water and releases proton from it.

$H_{3} {BO}_{3} + H_{2} O ⇌ B {(OH)}_{4}^{-} + H^{+}$

Solution:

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