Question

When borax is heated in a bunsenburner flame with coo on a loop of platinum?

Answer 1

Answer:

when borax is heated on platinum wire loop and the resulting transparent mass is heated with coo and bunsen burner Regards. First When Borax is heated it forms B2O3(Boris Anhydride), which is then heated with CoO and this forms Co(BO)2, Glassy Bead like structures which are blue in colour.

Answer 2

There is the formation of a blue color bead.

• Borax on heating gets fused and loses water on crystallization. There is swelling of the chemical which results in the melting into a colorless liquid, which further forms a transparent glass bead consisting of Boric Anhydride and Sodium Metaborate.
• On further heating of the obtained chemical with Cobalt Oxide on a loop of platinum wire, we get a blue-colored bead.