The active substance in Nessler's reagent use | vedclass

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(D) Nessler's reagent is an alkaline solution of potassium tetraiodomercurate$(II)$,which has the chemical formula $K_2[HgI_4]$.In this reagent,the ac

Vedclass · Accepted Answer

$[HgI_4]^{2-}$

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(D) Nessler's reagent is an alkaline solution of potassium tetraiodomercurate$(II)$,which has the chemical formula $K_2[HgI_4]$.In this reagent,the active species responsible for the detection of ammonia is the tetraiodomercurate$(II)$ ion,represented as $[HgI_4]^{2-}$.When it reacts with ammonia,it forms a brown precipitate known as the iodide of Millon's base.

The active substance in Nessler's reagent used for the detection of ammonia is ..........

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