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In borax bead test, which compound is fo...

In borax bead test, which compound is formed?

A

Meta borate

B

Tetra borate

C

Double oxide

D

Ortho borate

Text Solution

Verified by Experts

The correct Answer is:
A
`underset("(Borax)")underset("Sodium Pyroborate")(Na_(2)B_(4)O_(7).10H_(2)O) underset(-10H_(2)O)to Na_(2)B_(4)O_(7) overset(Delta) to underset("borate")underset("Sodium meta")(2NaBO_(2)) + underset("anhydride")underset("Boric")(B_(2)O_(3)) CuO + B_(2)O_(3) to underset("(Copper metaborate blue")(Cu(BO_(2))_(2))`
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