By which of the following reagents can a sublimate of HgCl2 be distinguished from NH4Cl ? | Qualitative and Quantitative Analysis — Chem-Mantra | Chem-Mantra

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Question

By which of the following reagents can a sublimate of HgCl2 be distinguished from NH4Cl ?

Answer: A

💡 Solution & Explanation

HgCl2 reacts with H2S in the presence of moisture to leave a black residue of HgS, whereas NH4Cl does not react.

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