H_3BO_3 or B(OH)_3 is considered as an acid b | vedclass

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Question

(B) $H_3BO_3$ is a weak monobasic Lewis acid. It does not dissociate to give $H^{+}$ ions directly in water. Instead,it acts as a Lewis acid by accept

Vedclass · Accepted Answer

Accepts $OH^{-}$ from water,releasing a proton

Vedclass · Answer

(B) $H_3BO_3$ is a weak monobasic Lewis acid. It does not dissociate to give $H^{+}$ ions directly in water. Instead,it acts as a Lewis acid by accepting an $OH^{-}$ ion from the water molecule. This process releases a proton $(H^{+})$ from the water molecule,thereby increasing the acidity of the solution. The reaction is: $B(OH)_3 + 2H_2O \rightarrow [B(OH)_4]^{-} + H_3O^{+}$. Therefore,$H_3BO_3$ is considered an acid because its molecule accepts $OH^{-}$ from water,releasing a proton.

$H_3BO_3$ or $B(OH)_3$ is considered as an acid because its molecule

Similar Questions

Which of the following is not associated with water molecules?

Which of the following elements form dimeric halides?

Assertion $(A)$: $[B(OH_2)_6]^{3+}$ and $[B(OH)_4]^{-}$ form octahedral and tetrahedral structures.
Reason $(R)$: Being electron deficient,boron readily reacts with Lewis bases like $H_2O$ and $OH^{-}$.
The correct option among the following is

The crystalline form of borax has
$(A)$ tetranuclear $\left[B_4O_5(OH)_4\right]^{2-}$ unit
$(B)$ all boron atoms in the same plane
$(C)$ equal number of $sp^2$ and $sp^3$ hybridized boron atoms
$(D)$ one terminal hydroxide per boron atom

What are the approximate $H-B-H$ bond angles in diborane $(B_2H_6)$?

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