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What is Nesseler's reagent ? What is the action of ammonia on Nesseler's reagent? |
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Answer» Solution :Nesseler's reagent is an alkaline solution of `K_(2)HgI_(4)` obtained by MIXING the solutions of `HgI_(2)` and `KI` in excess. `HgI_(2(aq))+underset("excess")(2KI_((aq)))rarr K_(2)HgI_(4(aq))` Ammonia or AMMONIUM salts GIVE orange brown precipitate with Nesseler's reagent due to the FORMATION of Million's base. |
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