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Olympiad workbook
Exam
Olympiad workbook
Subject
NSEC
Chapter
Coordination Compounds

Olympiad workbook · NSEC · Coordination Compounds

The correct order of CFSE of the following complex ions is...

The correct order of CFSE of the following complex ions is \left[\mathrm{Zn}\left(\mathrm{NH}_3\right)_4\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{2+},\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+},\left[\operatorname{Ir}\left(\mathrm{NH}_3\right)_6\right]^{3+}

Options

  1. A\left[\operatorname{Ir}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{2+}>\left[\mathrm{Zn}\left(\mathrm{NH}_3\right)_4\right]^{2+}
  2. B\left[\mathrm{Zn}\left(\mathrm{NH}_3\right)_4\right]^{2+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{2+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Ir}\left(\mathrm{NH}_3\right)_6\right]^{3+}
  3. C\left[\mathrm{Ir}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Zn}\left(\mathrm{NH}_3\right)_4\right]^{2+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{2+}
  4. D\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\operatorname{Ir}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{2+}>\left[\mathrm{Zn}\left(\mathrm{NH}_3\right)_4\right]^{2+}

Correct answer

A. \left[\operatorname{Ir}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}>\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{2+}>\left[\mathrm{Zn}\left(\mathrm{NH}_3\right)_4\right]^{2+}

Step-by-step solution

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