p-Block elementsHard

Question

The borax bead is chemically :

Options

A.B₂O₃

B.Na₂B₄O₇

C.Na₃BO₃

D.B₂O₃ + NaBO₂

Solution

Na₂B₄O₇ . 10H2O

2NaBO₂ + B₂O₃
(glassy bead)

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