Qualitative Analysis - Result Question 52

####55. Write the chemical reactions associated with the ‘borax bead test’ of cobalt (II) oxide.

(2000, 3M)

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Solution:

  1. $\quad Na _2 B _4 O _7 \stackrel{\Delta}{\longrightarrow} 2 NaBO _2+B _2 O _3$

$CoO+B _2 O _3 \stackrel{\Delta}{\longrightarrow} Co\left(BO _2\right) _2$



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