JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Identify the coordination complexes in which the central metal ion has \(d^4\) configuration.

Choose the correct answer from the options given below :
- A (B), (C) and (D) only
- B (C) and (E) only
- C (B) and (D) only
- D (A), (B) and (E) only
Answer & Solution
Correct Answer
(C) (B) and (D) only
Step-by-step Solution
Detailed explanation
\begin{aligned} & \mathrm{Fe}^{+6}=[\mathrm{Ar}] 3 \mathrm{~d}^2 \\ & \mathrm{Mn}^{+3}=[\mathrm{Ar}] 3 \mathrm{~d}^4 \\ & \mathrm{Fe}^{+3}=[\mathrm{Ar}] 3 \mathrm{~d}^5 \\ & \mathrm{Cr}^{+2}=[\mathrm{Ar}] 3 \mathrm{~d}^4 \\ & \mathrm{Ni}^{+4}=[\mathrm{Ar}] 3…
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