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JEE Main 202311 AprilMorning Shift
Exam
JEE Main
Year
2023
Date
11 April
Shift
Morning Shift
Subject
Chemistry
Chapter
Coordination Compounds

JEE Main 2023 · 11 April · Morning Shift · Chemistry · Coordination Compounds

The complex that dissolves in water is

The complex that dissolves in water is

Options

  1. A(NH4)3[As(Mo3O10)4]{\left({NH}_{4}\right)}_{3}\left[As{\left({Mo}_{3}{O}_{10}\right)}_{4}\right]
  2. B{Fe}_{4}{\left[Fe ( CN{)}_{6}\right]}_{3}
  3. CK3[Co(NO2)6]{K}_{3}\left[Co{\left({NO}_{2}\right)}_{6}\right]
  4. D[Fe3(OH)2(OAc)6]Cl\left[{Fe}_{3} ( OH{)}_{2} ( OAc{)}_{6}\right]Cl

Correct answer

D. [Fe3(OH)2(OAc)6]Cl\left[{Fe}_{3} ( OH{)}_{2} ( OAc{)}_{6}\right]Cl

Step-by-step solution

[Fe3(OH)2(OAc)6]Cl\left[{Fe}_{3} ( OH{)}_{2} ( OAc{)}_{6}\right]Cl is a coordination complex containing iron ions coordinated with hydroxide and acetate ligands. When dissolved in water, this complex can undergo hydrolysis and dissociation.

So, [Fe3(OH)2(OAc)6]Cl\left[{Fe}_{3} ( OH{)}_{2} ( OAc{)}_{6}\right]Cl dissolves in water. Rest of the complexes form precipitate.

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