Question

Confirmatory test of ammonium ion is done by:

विकल्प

• Conc. H₂SO₄

• K₂Cr₂O₇

• K₂Hgl₄

• NaOН

Answer 1

K₂Hgl₄

Explanation:

Potassium tetraiodomercurate(II) (K₂[Hgl₄]), also known as Nessler's reagent, reacts with ammonium ions to form a characteristic brown precipitate.