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Friday, 9 October

JEE Main 2026 · ChemistryMultiple choiceSingle correctMediumMulti-step

JEE Main 4 April 2026, Shift 2, Chemistry Q69

Question 69 of 75 in this shift, Chemistry question 19 of 25, Section A.

Among Fe3+\mathrm{Fe^{3+}}, Pb2+\mathrm{Pb^{2+}}, Cu2+\mathrm{Cu^{2+}} and Mn2+\mathrm{Mn^{2+}}, identify the one that gets precipitated out while passing H2S\mathrm{H_2S} in presence of NH4OH\mathrm{NH_4OH} as group reagent. The highest possible oxidation state of the corresponding metal is
  1. (1)+3
  2. (2)+4
  3. (3)+2
  4. (4)+7Official answer

Official answer

Option 4

NTA final key.

Chapter
Equilibrium
Topic
Cation Analysis
Idea tested
Group IV Sulfides

Same idea in other shifts

Asked 2× in all
  1. 9 Apr 2024, Shift 2 · Q87Consider the following test for a group-IV cation. M2++H2S→A\mathrm{M^{2+} + H_2S \rightarrow A} (Black precipitate) + byproduct A\mathrm{A} +…HardNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.