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ChemistryJEE Main 4 Apr 2026, Shift 2·Q19·MCQ·Easy–moderate

Practical / Qualitative Analysis · Cation group reagents

Among FeX3+\ce{Fe^3+}, PbX2+\ce{Pb^2+}, CuX2+\ce{Cu^2+} and MnX2+\ce{Mn^2+}, identify the one that gets precipitated out while passing HX2S\ce{H2S} in presence of NHX4OH\ce{NH4OH} as group reagent. The highest possible oxidation state of the corresponding metal is
  1. (1)+3+3
  2. (2)+4+4
  3. (3)+2+2
  4. (4)+7+7

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See the full 4 Apr 2026, Shift 2 paper