Question

11. Which of the following gives yellow or brown precipitate
with alkaline Nessler's reagent?
(2018A]
(4) có, BỘ NH. (C) Naci (D) KI
Thermal​

Answer 1

Answer:

NH3

Explanation:

Nessler's reagent is an alkaline solution of potassium tetraiodomercurate (II). When this reagent is added to the water extract of an unknown solution, a brown precipitate of basic amidoiodomercury (II) is formed if ammonium ions are one of the constituents of the substance.

Hence, only will give a test with nessler's reagent.