Question

Which of the following cation can not give borax bead test?

• A. $Cr^{3 +}$
• B. $Co^{2 +}$
• C. $Ag^{+}$
• D. $Mn^{+}$

Answer 1

Answer: (C)

$Ag^{+}$ ion cannot give borax bead test because formed silver metaborate $AgBO_{2}$ is white/colourless while rest other cations forms coloured metaborates here.