When H_2Sis passed through the HCl solution containing CuCl_2, HgCl_2, – InterviewSolution

1.	When H_2Sis passed through the HCl solution containing CuCl_2, HgCl_2, BiCl_3and CoCl_2. It does not precipitate out :
Answer» CUS HGS `Bi_2S_3` `COS ` ANSWER :D

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