Give heating effect of orthoboric acid
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Explain what happens when boric acid is heated. Answer: Orthoboric acid when heated above 370K forms metaboric acid, HBO2 which on further heating yields boric oxide, B2O3.
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Answer:
Heating effect of orthoboric acid
When strongly heated, orthoboric acid gives boric oxide (B₂O₃).
Explanation:
Reaction -
Orthoboric acid (H₃BO₃) when heated gives metaboric acid (HBO₂).
H₃BO₃ + ∆ → HBO₂
On further strong heating, metaboric acid (HBO₂) gives boric oxide (B₂O₃).
HBO₂ + ∆ → B₂O₃
* This reaction takes place at 370 ℃.
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