JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Match List-I with List-\(II\)
| List-\(I\) (Complexion) | List-\(II\) (Spin only magnetic moment in B.M.) |
| \((A)\) \({\left[\mathrm{Cr}\left(\mathrm{NH}_5\right)_0\right]^{3+}}\) | \((I)\) \(4.90\) |
| \((B)\) \({\left[\mathrm{NiCl}_4\right]^{2-}}\) | \((II)\) \(3.87\) |
| \((C)\) \({\left[\mathrm{CoF}_6\right]^{3-}}\) | \((III)\) \(0.0\) |
| \((D)\) \({\left[\mathrm{Ni}(\mathrm{CN})_4\right]^{2-}}\) | \((IV)\) \(2.83\) |
- A \((A)-(I), (B)-(IV), (C)-(II), (D)-(III)\)
- B \((A)-(IV), (B)-(III), (C)-(I), (D)-(II)\)
- C \((A)-(II), (B)-(IV), (C)-(I), (D)-(III)\)
- D \((A)-(II), (B)-(III), (C)-(I), (D)-(IV)\)
Answer & Solution
Correct Answer
(C) \((A)-(II), (B)-(IV), (C)-(I), (D)-(III)\)
Step-by-step Solution
Detailed explanation
\((A)\) \({\left[\mathrm{Cr}\left(\mathrm{NH}_3\right)_6\right]^{3+}}\) \(\mathrm{Cr}^{3+}: 3 \mathrm{~d}^3\) \(\mathrm{n}=3 \text { (unpaired electrons) }\) \(\mu \simeq 3.87 \text { B.M. (II) }\) \((B)\) \({\left[\mathrm{NiCl}_4\right]^{2-}}\)…
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