Which of the following statements about H3BO3 is not correct? (a) It has a layer structure in which planar BO3 units are joined by hydrogen bonds. (b) It does not act as proton donor but acts as a Lewis acid by accepting hydroxyl ion. (c) It is a strong tribasic acid. (d) It is prepared by acidifying an aqueous solution of borax.
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Explanation:
1. It is not a tribasic acid.
Option A is incorrect for H
3
BO
3
.
2. Aqueous solution, instead of donating the −OH group it breaks the H−OH bond of water and accepts the −OH group from it leaving in the solution hence it is mono basic acid.
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