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Boric acid is :...

Boric acid is `:`

A

a tribasic and weak Bronsted acid.

B

polymeric due to the presence of hydrogen bonds.

C

obtained by the hydrolysis of only boron halides and not by the hydrolysis of boron hydrides with water or dilute acids.

D

highly soluble in cold water.

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The correct Answer is:
2
`(1)` It is a weak monobasic Lewis acid.
`(2)` It has layer structure in which planar `BO_(4)` units are joined by hydrogen bonds giving polymer structure.
`(3)` Can be obtained by the hydrolysis of boron halids as well as boron hydrides with water or dilute acids.
`(4)` It is sparingly in cold water and highly soluble in hot water.
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