Saved Bookmarks
| 1. |
Explain the action of heat on boric acid. |
|
Answer» Solution :Boric acid when HEATED at 373 K gives 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_(3)BO_(3)overset(373K)(to)4HBO_(2)+H_(2)O` `4HBO_(2)overset(413K)(to)H_(2)B_(4)O_(7)+H_(2)O` `H_(2)B_(4)O_(7)overset("Red hot")(to) 2B_(2)O_(3)+H_(2)O` |
|