p-Block elementsHard

Question

In the following reaction : B (OH)3 + H2O → [B(OH)4]- + H+:

Options

A.B(OH)3 is a Lewis acid.
B.B(OH)3 is a Lewis base.
C.B(OH)3 is amphoteric.
D.none is correct.

Solution

As boron completes it octet by accepting OH- from water molecule. Hence it acts as a Lewis acid.

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