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Test for Ammonia

Nessler's rea...

Question

Nessler's reagent is used to detect trace amounts of ammonia. Its formula is :

K [H g I_{4}]

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K_{2} [H g I_{2}]

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K_{2} [H g I_{4}]

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K [H g l_{3}]

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Solution

The correct option is C $K_{2} [H g I_{4}]$
Alkaline solution of $K_{2} H g I_{4}$ is called Nessler's reagent

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