Element not present in Nessler’s reagent is

Element not present in Nessler’s reagent is

$N$
$Hg$
$I$
$K$

Solution

Nessler's reagent is an aqueous solution of potassium iodide, mercuric chloride, and potassium hydroxide. Its chemical formula is $K_{2} {HgI}_{4}$ . It is used to detect the presence of ammonia. It turns into pale brown colour in presence of ammonia.
So, $N$ is not present in Nessler's reagent.

Asked in: JEE Main 2023 (06 Apr Shift 2)

Practice more Coordination Compounds questions on Aicharya