Multiple choice

Arrange the following transition metal ions in the increasing order of Δ (splitting energy) values.

  1. Co3+
  2. V2+
  3. Cr3+
  4. Mn2+

  1. 1 < 2 < 3 < 4

  2. 1 < 3 < 2 < 4

  3. 2 < 4 < 3 < 1

  4. 4 < 2 < 3 < 1

  5. 4 < 3 < 2 < 1
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D Correct answer
Explanation

The metal ions can be arranged in order of increasing Δ, and this order is largely independent of the identity of the ligand. Mn2+ < Ni2+ < Co2+ < Fe2+ < V2+ < Fe3+ < Cr3+ < V3+ < Co3+

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