First slide

13th group or boron group

Question

Borax bead is a mixture of

Moderate

A

${NaBO}_{2} + B_{2} O_{3}$
B

${Na}_{2} B_{4} O_{7} + B_{2} O_{3}$
C

$H_{2} B_{4} O_{7} + B_{2} O_{3}$
D

${Na}_{2} B_{4} O_{7} + 10 H_{2} O + B_{2} O_{3}$

Solution

Borax bead is a mixture of sodium metaborate and Boric anhydride.

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