p-Block elementsHard

Question

Which of the following statements regarding ortho boric acid (H3BO3) is false ?

Options

A.It acts as a weak monobasic acid
B.It is soluble in hot water
C.It has a planar structure
D.It acts as a tribasic acid

Solution

B(OH)3 + 2HOH ⇋ [B(OH)4]- + H3O+.
In aqueous solution the boron completes its octet by accepting OH- from water molecules. It therefore function as a weak monobasic lewis acid.

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