Explain the action of heat on boric acid . – InterviewSolution

1.	Explain the action of heat on boric acid .
Answer» Solution :Boric acid when HEATED at 373 K given metaboric acid and at 413 K, it gives tetraboric acid . When heated at RED hot , it gives boric ANHYDRIDE which is a GLASSY mass. `4H_3BO_3overset(375K)rarr4HBO_2+H_2O` `4HBO_2overset(413K)rarrH_2B_4O_7+H_2O` `H_2B_4O_7overset("Red hot ")rarr2B_2O_3+H_2O`

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