First slide

13th group or boron group

Question

Which one of the following statement(s) about H₃BO₃ is/are correct?

Moderate

A

It is a strong tribasic acid.
B

It is prepared by acidifying an aqueous solution of borax.
C

It has a layer structure in which planar BO₃ units are joined by hydrogen bonds.
D

It does not act as proton donor as it acts as a Lewis acid by accepting lone pair of hydroxyl ions

Solution

It is mono basic in nature. That proton also comes from water. It accepts hydroxy group and releases hydrogen ion.

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