Qualitative and Quantitative AnalysishardMCQ SINGLE⭐ Must-Do

Nessler's reagent is used to detect the zero group radical. The characteristic brown precipitate forQualitative and Quantitative Analysis Chemistry Question

Question

Nessler's reagent is used to detect the zero group $NH_4^+$ radical. The characteristic brown precipitate formed during this test, chemically known as the Iodide of Millon's base, has the precise formula:

Answer: C

💡 Solution & Explanation

The reaction of ammonia with alkaline $K_2HgI_4$ (Nessler's reagent) yields a brown precipitate of basic mercury(II) amido-iodine. Its stoichiometric formula is $HgO \cdot Hg(NH_2)I$.

💬
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes
Ask on WhatsApp →

Practice 22,000+ questions like this

AI-adaptive practice, video lectures, and full JEE Advanced Chemistry content — all in one place.

JEE Advanced · JEE Mains · NEET · IChO · AP Chemistry