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:
- $\quad Na _2 B _4 O _7 \stackrel{\Delta}{\longrightarrow} 2 NaBO _2+B _2 O _3$
$CoO+B _2 O _3 \stackrel{\Delta}{\longrightarrow} Co\left(BO _2\right) _2$