1.

Passing `H_(2)S` gas into a mixture of `Mn^(2+), Ni^(2+), Cu^(2+)` and `Hg^(2+)` ions in an acidified aqueous solution precipitatesA. CuS and `Hg_(2)S`B. MnS and CuSC. MnS and NiSD. NiS and `Hg_(2)S`

Answer» Correct Answer - A
`H_(2)S` in acidic medium precipitates radicals of group of 2 of quantitative analysis, i.e., `Cu^(2+), Hg^(2+), ` and `Pb^(2+), Br^(3+),Cd^(2+),As^(3+),Br^(3+),Sn^(2+)`


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