Which one among the following pairs of ions cannot be separated by `H_(2)S` in dilute HCl ?A. `Bi^(3+),Sn^(4+)`B. `Al^(3+),Hg^(2+)`C. `Zn^(2+),Cu^(2+)`D. `Ni^(2+),Cu^(2+)`

Which one among the following pairs of ions cannot be separated by `H_

1.	Which one among the following pairs of ions cannot be separated by `H_(2)S` in dilute HCl ?A. `Bi^(3+),Sn^(4+)`B. `Al^(3+),Hg^(2+)`C. `Zn^(2+),Cu^(2+)`D. `Ni^(2+),Cu^(2+)`
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Which one among the following pairs of ions cannot be separated by `H_(2)S` in dilute HCl ?A. `Bi^(3+),Sn^(4+)`B. `Al^(3+),Hg^(2+)`C. `Zn^(2+),Cu^(2+)`D. `Ni^(2+),Cu^(2+)`

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