Question

Which of the following can be detected by the borax-bead test ?

• A. $N{i}^{2+}$
• B. $C{o}^{2+}$
• C. $P{b}^{+2}$
• D. Both (A) & (B)

Answer 1

The correct option is D Both (A) & (B)

As $P{b}^{+2}$ have no unpaired d-electron so it will not be colored and borax bead test is given by colored salts only so it will not give this test.