only one gives a precipitate when H2S is passed. Identify the corresponding one

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Out of Cu 2+ , Ni 2+, Co 2+ and Mn 2+ those dissolve in dil. HCl, only one gives a precipitate when H2S is passed. Identify the corresponding one
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Dec
Out of Cu 2+ , Ni 2+, Co 2+ and Mn 2+ those dissolve in dil. HCl, only one gives a precipitate when H2S is passed. Identify the corresponding one Co 2+ and Mn 2+ those dissolve in dil. HCl Ni 2+ only one gives a precipitate when H2S is passed. Identify the corresponding one [...]
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Tags: Co 2+ and Mn 2+ those dissolve in dil. HCl , Ni 2+ , only one gives a precipitate when H2S is passed. Identify the corresponding one , Out of Cu 2+ ,