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COMEDK2020ChemistryCoordination Compounds

Which complex cannot ionise in solution?

Options

  1. A[ Pt ( NH ₃ )₆ ] Cl ₄
  2. BK ₂ [ Pt ( F ₆ ) ]
  3. CK ₄ [ Fe ( CN )₆ ]
  4. D[ CoCl ₃ ( NH ₃ )₃ ]

Correct answer

D. [ CoCl ₃ ( NH ₃ )₃ ]

Step-by-step solution

The complex [ CoCl ₃ ( NH ₃ )₃ ] cannot ionise in the solution as there is no primary valency in this compound and all the ions are within the coordination entity.

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