Question

$K_{2}Hg{I}_4$ is used to test the following:

• A. $N{H}_4^{+}$
• B. $Cl$
• C. $Br$
• D. $I$

Answer 1

Answer: (A)

In the identification of $N{H}_4^{+}$ ion neseller reagent $K_{2}Hg{I}_4$ is used with which it give brown precipitate.