Consider the sulphides HgS, PbS, CuS, Sb2S3, As2S3 and CdS. Number of these sulphides | JEE Mains Chemistry Past Papers — Chem-Mantra | Chem-Mantra

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JEE Mains Chemistry Past PapershardNUMERICAL

Question

Consider the sulphides HgS, PbS, CuS, Sb2S3, As2S3 and CdS. Number of these sulphides

Answer: .

💡 Solution & Explanation

CdS, PbS, As2S3, and CuS, are soluble in 50% HNO3 while HgS and Sb2S3 are insoluble in 50% HNO3 but HgS soluble in aqua regia.

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