Analytical ChemistryHard
Question
Which of the following compound is formed in borax bead test ?
Options
A.Orthoborate
B.Metaborate
C.Double oxide
D.Tetraborate
Solution
Na2B4O7.10H2O 
Na2B4O7 + 10H2O ; Na2B4O7
2NaBO2 + B2O3
CuO + B2O3
Cu(BO2)2 (copper (II) metaborate) - red and opaque bead in oxidising flame.
Na2B4O7 + 10H2O ; Na2B4O7 2NaBO2 + B2O3 CuO + B2O3
Cu(BO2)2 (copper (II) metaborate) - red and opaque bead in oxidising flame.Create a free account to view solution
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