1. Tardigrade
  2. Question
  3. Chemistry
  4. Nessler's reagent is

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Nessler's reagent is

Chhattisgarh PMTChhattisgarh PMT 2004

Solution:

The mixture of $\left(K_{2} H g I_{4}+K O H\right)$ or $\left(K_{2} H g I_{4}+N a O H\right)$ is known as Nesslel's reagent.
It gives a reddish brown precipitate or coloration with $NH _{3}$.
$2 K _{2}\left[ HgI _{4}\right]+3 KOH + NH _{3} \rightarrow$
$ \underset{(\text { reddish brown ppt })}{ HgO\cdot Hg \left( NH _{2}\right) I }+4 KI +3 NaI +2 H _{2} O$