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Question

Show the effect of heat on the following commercially important compounds:

Orthoboric acid H3BO3

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Solution

On heating orthoboric acid (H3BO3) at 370K or above, it changes to metaboric acid (HBO2). On further heating, this yields boric oxide B2O3.

H3BO3370KHBO2MetaboricacidRedhotB2O3Boricoxide

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