Multiple choice

Which of the following is/are high spin complexes?

  1. [Fe(H2O)6]2+
  2. [Fe(CN)6]4-
  3. [CrF6]3-
  4. [Cr(NH3)6]3+

  1. Only 1 and 3

  2. Only 2 and 4

  3. Only 1 and 2

  4. Only 2 and 3

  5. Only 3 and 4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This option is correct because in the complexes [Fe(H2O)6]2+ and [CrF6]3-, the water and halogen are low field ligands, so both of them forms high spin complexes.

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