Multiple choice

Which of the following complexes has square planar geometry?

  1. MnO4-

  2. FeCl4-

  3. CoCl42-

  4. PdCl42-

  5. ZnCl42-
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

With a second row d8 metal ion such as Pd2+ (which already generates a strong field), even a weak field ligand Cl- leads the formation of a square planar complex. Example: PdCl42-

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