Question

State the effect of heat on boric acid.

Answer 1

Answer:

when boric acid is heated it converts to metabolic acid which on further heating gives boron trioxide on further heating the metaboric acid break up into boric acid (B2O3) and water

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Answer 2

Answer:

Boric acid when heated at 373K gives metaboric acid and at 413K, it gives tetraboric acid.When heated red hot, it gives boric anhydride which is a glassy mass.