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JEE Main 202523 JanuaryEvening Shift
Exam
JEE Main
Year
2025
Date
23 January
Shift
Evening Shift
Subject
Chemistry
Chapter
Coordination Compounds

JEE Main 2025 · 23 January · Evening Shift · Chemistry · Coordination Compounds

Identify the coordination complexes in which the central metal ion...

Identify the coordination complexes in which the central metal ion has d4d^4 configuration. Identify the coordination complexes in which the central metal ion has d^4 configuration. Choose the correct answer
Choose the correct answer from the options given below :

Options

  1. A(B), (C) and (D) only
  2. B(C) and (E) only
  3. C(B) and (D) only
  4. D(A), (B) and (E) only

Correct answer

C. (B) and (D) only

Step-by-step solution

Fe+6=[Ar]3 d2Mn+3=[Ar]3 d4Fe+3=[Ar]3 d5Cr+2=[Ar]3 d4Ni+4=[Ar]3 d6\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 \mathrm{~d}^6\end{aligned}
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