Question:medium
Arrange the following complexes in increasing order of CFSE (\( \Delta o \))
(a) \( [Co(H_2O)_6]^{2+} \)
(b) \( [Co(H_2O)_6]^{3+} \)
(c) \( [Co(en)_3]^{3+} \)
Arrange the following complexes in increasing order of CFSE (\( \Delta o \))
(a) \( [Co(H_2O)_6]^{2+} \)
(b) \( [Co(H_2O)_6]^{3+} \)
(c) \( [Co(en)_3]^{3+} \)
(a) \( [Co(H_2O)_6]^{2+} \)
(b) \( [Co(H_2O)_6]^{3+} \)
(c) \( [Co(en)_3]^{3+} \)
Show Hint
For a given metal, the higher the charge and the stronger the ligand, the greater the crystal field splitting and CFSE.
Updated On: Apr 2, 2026
- \( c>a>b \)
- \( c>b>a \)
- \( a>b>c \)
- \( b>a>c \)
Show Solution
The Correct Option is B
Solution and Explanation
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Top Questions on Crystal Field Theory
- Identify the homoleptic complex(es) that is/are low spin.
[(A)] \([\text{Fe(CN)}_5\text{NO}]^{2-}\)
[(B)] \([\text{CoF}_6]^{3-}\)
[(C)] \([\text{Fe(CN)}_6]^{4-}\)
[(D)] \([\text{Co(NH}_3)_6]^{3+}\)
[(E)] \([\text{Cr(H}_2\text{O)}_6]^{2+}\)
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