Out of `Cr^(2+),Ni^(2+),Co^(2+) and Mn^(2+)` those dissolve in dil. HCl, only one gives a precipitate when `H_(2)S` is passed. Identify the corresponding oneA. `Ni^(2+)`B. `Cu^(2+)`C. `Co^(2+)`D. `Mn^(2+)`

Out of `Cr^(2+),Ni^(2+),Co^(2+) and Mn^(2+)` those dissolve in dil. HC

1.	Out of `Cr^(2+),Ni^(2+),Co^(2+) and Mn^(2+)` those dissolve in dil. HCl, only one gives a precipitate when `H_(2)S` is passed. Identify the corresponding oneA. `Ni^(2+)`B. `Cu^(2+)`C. `Co^(2+)`D. `Mn^(2+)`
Answer» Correct Answer - B Dil. HCl and `H_(2)S` are group-II reagents. `Cu^(2+)` is a group-II ion (in qualitative analysis).

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Out of `Cr^(2+),Ni^(2+),Co^(2+) and Mn^(2+)` those dissolve in dil. HCl, only one gives a precipitate when `H_(2)S` is passed. Identify the corresponding oneA. `Ni^(2+)`B. `Cu^(2+)`C. `Co^(2+)`D. `Mn^(2+)`

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