EASYVIT - VITEEE 2025
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Orthoboric Acid - Practice Questions & MCQ
Edited By admin | Updated on Sep 18, 2023 18:35 AM | #JEE Main
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17 Questions around this concept.
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Boric acid is polymeric due to
Boric acid is an acid because its molecule:
Which compound is obtained on red heat of orthoboric acid?
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Boric Acid is used -
Boric acid is an acid because its molecule
Which compound is prepared when $\mathrm{SO}_{2(g)}$ is passed through the suspension of colemanite ore in hot water?
Concepts Covered - 0
Orthoboric Acid
Orthoboric acid, H3BO3 is a white crystalline solid, with soapy touch. It is sparingly soluble in water but highly soluble in hot water. It can be prepared by acidifying an aqueous solution of borax.
It is also formed by the hydrolysis (reaction with water or dilute acid) of most boron compounds (halides, hydrides, etc.). It has a layer structure in which planar BO3 units are joined by hydrogen bonds as shown in the figure given below.
Boric acid is a weak monobasic acid. It is not a protonic acid but acts as a Lewis acid by accepting electrons from a hydroxyl ion:
On heating, orthoboric acid above 370K forms metaboric acid, which on further heating yields boric oxide,
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