JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Consider the following low-spin complexes
\(\mathrm{K}_3\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right], \mathrm{K}_4\left[\mathrm{Fe}(\mathrm{CN})_6\right]\),
\(\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{CN})_6\right], \mathrm{Cu} u_2\left[\mathrm{Fe}(\mathrm{CN})_6\right] \text { and } \mathrm{Zn}_2\left[\mathrm{Fe}(\mathrm{CN})_6\right]\)
The sum of the spin-only magnetic moment values of complexes having yellow colour is. _____ B.M. (answer in nearest integer)
- A \(0\)
- B 1
- C 2
- D 3
Answer & Solution
Correct Answer
(A) \(0\)
Step-by-step Solution
Detailed explanation
\(\mathrm{K}_3\left[\mathrm{Co}\left(\mathrm{NO}_2\right)_6\right]=\) Yellow \(\Rightarrow \mathrm{Co}^{3+}=3 \mathrm{~d}^6 \Rightarrow \mathrm{t}_{2 \mathrm{~g}}^6 \mathrm{e}_{\mathrm{g}}^0\)…
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