On heating, borax first swells up by losing water molecules. On further heating it changes to transparent liquid which solidifies to glass like material known as borax bead. In the following equation, supply the formulae of compounds. A and B respectively.
${Na}_{2} B_{4} O_{7} \cdot 10 H_{2} O ⟶ {Na}_{2} B_{4} O_{7} \to A + B$

Question

On heating, borax first swells up by losing water molecules. On further heating it changes to transparent liquid which solidifies to glass like material known as borax bead. In the following equation, supply the formulae of compounds. A and B respectively.

${Na}_{2} B_{4} O_{7} \cdot 10 H_{2} O ⟶ {Na}_{2} B_{4} O_{7} \to A + B$

Infinity Learn · Accepted Answer

$$Na2$$ $$B4O7$$·$$10H2O$$⟶$$Na2$$ $$B4O7$$→$$2NaBO2$$ Sod. metaborate $$+B2O3$$ Boric anhydride metaborates of many transition metals have characteristic colour ,so borax bead test is used to identify them .

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On heating, borax first swells up by losing water molecules. On further heating it changes to transparent liquid which solidifies to glass like material known as borax bead. In the following equation, supply the formulae of compounds. A and B respectively.Na2 B4O7·10H2O⟶Na2 B4O7→A+B

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