Latest IIT-JEE Aptitude Question SOLUTION: 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

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(#M40027769) IIT-JEE question 2011 question Keep an EYE

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: Asked In IIT-JEE MAN (10 years ago); Unsolved; Is this Puzzle helpful? (10) (12) Submit Your Solution

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Previous Question: Among the following complexes (K-P) K3[Fe(CN)6] (K), [Co(NH3)6]Cl3 (L), Na3[Co(oxalate)3] (M), [Ni(H2O)6]Cl2 (N), K2[Pt(CN)4] (O) and [Zn(H2O)6](NO3)2 (P) (A) K, L, M, N (B) K, M, O, P (C) L, M, O, P (D) L, M, N, O Next Question: Reduction of the metal centre in aqueous permanganate ion involves (A) 3 electrons in neutral medium (B) 5 electrons in neutral medium (C) 3 electrons in alkaline medium (D) 5 electrons in acidic medium

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