Saved Bookmarks
| 1. |
Explain the reaction of borax on heating . |
|
Answer» Solution :Borax on heating loses water of crystallisation and swells to form a puffy mass which further heating melts to give a clear liquid which solidifies to a transparent glass LIKE BEAD consist of sodium METABORATE `( NaBO_(2))` and boric anhydride `B_(2) O_(3)` . `Na_(2) B_(4)O_(7) : 10H_(2)O overset ("heat") to Na_(2) B_(4) O_(7) +10H_(2)O` `Na_(2) B_(4) O_(7) overset("heat")(RARR) underset ("Sodium META borate ") (2NaBO_(2))+ underset("boric anhydride ") (B_(2)O_(3))`. |
|