When H_2S is passed through the HCl containing aqueous solution of CuC – InterviewSolution

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1.	When H_2S is passed through the HCl containing aqueous solution of CuCl_2 HgCl_2 BiCl_3 and CoCl_2, it does not precipitate out
Answer» CuS Hgs `Bi_2S_3` CoS Answer :D

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