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The sulphide ion concentration [S^(2-)] ...

The sulphide ion concentration `[S^(2-)]` in saturated `H_(2)S` solution is `1xx10^(-22)`. Which of the following sulphides should be quantitavely precipitated by `H_(2)S` in the presence of dil. `HCl`?
`{:("Sulphide",,"Solubility Product"),((I),,1.4xx10^(16)),((II),,1.2xx10^(-22)),((III),,8.2xx10^(-46)),((IV),,5.0xx10^(-34)):}`

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