CUET · CHEMISTRY · PYQ PAPER 2025
Magnetic moment values for \(\left[ Fe \left( H _2 O \right)_6\right]^{3+}\) and \(\left[ Fe ( CN )_6\right]^{3-}\) are ....
- A 1.74 BM and 5.92 respectively
- B 5.92 BM and 1.74 respectively
- C 1.74 BM for both
- D 5.92 BM for both
Answer & Solution
Correct Answer
(B) 5.92 BM and 1.74 respectively
Step-by-step Solution
Detailed explanation
For \(\left[ Fe \left( H _2 O \right)_6\right]^{3+}\): \(\text{Fe}^{3+}: 3d^5\) \(\text{H}_2\text{O}\) (weak field ligand) \(\Rightarrow n=5\) \(\mu = \sqrt{5(5+2)} = \sqrt{35} \approx 5.92\) BM For \(\left[ Fe ( CN )_6\right]^{3-}\): \(\text{Fe}^{3+}: 3d^5\) \(\text{CN}^-\)…
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