On heating, borax first loses water molecules and swells up. On further heating it turns into a transparent liquid, which solidifies into glass like material known as

Question

On heating, borax first loses water molecules and swells up. On further heating it turns into a transparent liquid, which solidifies into glass like material known as (A) borax wax (B) borax bead (C) borax liquid (D) None of these

Tardigrade Admin · Accepted Answer

On heating borax, it first loses water molecules and swells up. On further heating, it turns into a transparent liquid, which solidifies into glass like material known as borax bead.
The corresponding reaction is given below :

N a_{2} B_{4} O_{7} \cdot 10 H_{2} O Δ Sodium metaborate N a_{2} B_{4} O_{7} Δ 2 N a B O_{2} + Boric anhydride B_{2} O_{3}

Q. On heating, borax first loses water molecules and swells up. On further heating it turns into a transparent liquid, which solidifies into glass like material known as

borax wax

borax bead

borax liquid

None of these