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Problem
Problem
Which of the following cation can not give borax bead test ? a.
Cr
3
+
\text{Cr}^{3+}
Cr
3
+
b.
Co
2
+
\text{Co}^{2+}
Co
2
+
c.
Ag
+
\text{Ag}^+
Ag
+
d.
Mn
2
+
\text{Mn}^{2+}
Mn
2
+
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