AP EAMCET · Chemistry · Coordination Compounds
Observe the following complexes
\(\begin{aligned}
& {\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-},\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{-3},\left[\mathrm{Co}\left(\mathrm{C}_2 \mathrm{O}_4\right)_3\right]^{3-},\left[\mathrm{MnCl}_6\right]^{3-},} \\
& {\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-},\left[\mathrm{CoF}_6\right]^{3-}}
\end{aligned}\)
From the above, the number of inner orbital complexes with paramagnetic nature is
- A \(2\)
- B \(1\)
- C \(3\)
- D \(4\)
Answer & Solution
Correct Answer
(A) \(2\)
Step-by-step Solution
Detailed explanation
\(\begin{aligned} & {\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-}:-} \\ & \mathrm{Mn}^{3+}=[\mathrm{Ar}]^3 \mathrm{~d}^4\end{aligned}\) \(\mathrm{CN}^{-}\)is a strong-field ligand so it pairs the electrons. Thus, \(\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-}=\) Thus, it is an…
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