H_3BO_3 is | vedclass

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Question

Central boron atom in $\mathrm{H}_{3} \mathrm{BO}_{3}$ is electron deficient, therefore it accepts a pair of electrons, hence it is weak Lewis acid. T

Vedclass · Accepted Answer

Monobasic and weak Lewis acid

Vedclass · Answer

Central boron atom in $\mathrm{H}_{3} \mathrm{BO}_{3}$ is electron deficient, therefore it accepts a pair of electrons, hence it is weak Lewis acid. There is no d-orbital of suitable energy in boron atom.

So, it can accommodate only one additional electron pair in its outermost shell. Thus, $\mathrm{H}_{3} \mathrm{BO}_{3}$ is monobasic weak Lewis acid.

$\underset{	ext { Base }}{\mathrm{H}_{2} \mathrm{O}}$+$\underset{	ext { Acid }}{\mathrm{B}(\mathrm{OH})_{3}} \longrightarrow\left[\mathrm{B}(\mathrm{OH})_{4}ight]^{-}+\mathrm{H}^{+}$

$H_3BO_3$ is

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