NCERT Class XI Chemistry The p-Block Elements Solutions

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Question : 6
Total: 38
Explain what happens when boric acid is heated.
Solution:  
On heating orthoboric acid above 370 K, it forms metaboric acid, HBO2 which on further heating yields boric oxide, B2O3.
H3BO3
Δ
HBO2
Δ
B2O3
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