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Question

The borax bead is is chemically:


A
B2O3
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B
Na2B4O7
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C
Na3BO3
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D
B2O3+NaBO2
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Solution

The correct option is C $$B_2O_3+NaBO_2$$
$$\underset{Borax}{Na_2B_4O_7.10H_2O}\rightarrow Na_2B_4O_7+10H_2O \rightarrow \underset{boric\ oxide}{B_2O_3}+\underset{sodium\ metaborate}{2NaBO_2}$$
Borax Bead is a mixture of Sodium Meta Borate ($${Na}{B}{O}_{2}$$) and Boric Oxide ($${B}_{2}{O}_{3}$$).

Chemistry

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