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Passing H2S gas into a mixture of Mn2+, Ni2+, Cu2+ and Hg2+ ions in an acidified aqueous solution precipitates (A) CuS and HgS. (B) MnS and CuS. (C) MnS and NiS . (D) NiS and HgS.

Passing H2S gas into a mixture of Mn2+, Ni2+, Cu2+ and Hg2+ ions in an acidified aqueous solution
precipitates
(A) CuS and HgS.
(B) MnS and CuS.
(C) MnS and NiS .
(D) NiS and HgS.

Grade:12

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