Question

Formulae for Nessler's reagent is:

• A. $KHgI _3$
• B. $HgI _2$
• C. $K _2 HgI _4$
• D. $KHg _2 I _2$

Answer 1

Answer: (C)

$K _2 HgI _4$

Answer 2

Nessler's reagent is K2​HgI4​.