Mercurous chloride black on adding `NH_(4)OH` to it. Explain. – InterviewSolution

1.	Mercurous chloride black on adding `NH_(4)OH` to it. Explain.
Answer» `Hg_(2)+Cl_(2)+NH_(4)OHtounderset("Black")ubrace(Hg-NH_(2)Cl+Hg)` this is used to detect mercurous ions.

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