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

Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Compounds of Boron and Aluminium Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

B(OH)3 is a Lewis acid

B(OH)3 is a Lewis base.

B(OH)3 is amphoteric.

None is correct.

Text Solution

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The correct answer is:

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

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