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JEE Main 2023 · ChemistryMultiple choiceSingle correctHardRecall

JEE Main 11 April 2023, Shift 1, Chemistry Q76

Question 76 of 90 in this shift, Chemistry question 16 of 30, Section A.

The complex that dissolves in water is

(1) $\mathrm{[Fe_3(OH)_2(OAc)_6]Cl}$ Official answer
(2) $\mathrm{K_3[Co(NO_2)_6]}$
(3) $\mathrm{Fe_4[Fe(CN)_6]_3}$
(4) $\mathrm{(NH_4)_3[As(Mo_3O_{10})_4]}$

Official answer

Option 1

NTA final key.

Chapter: Coordination Compounds
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy

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.