Select the correct statements for $[Fe(CN)_6]^{3-}$ complex:

(A) Paramagnetic
(B) $sp^3d^2$ hybridization
(C) Magnetic moment = 5.92 BM
(D) $d^2sp^3$ hybridization

Choose the correct answer from the options given below:

(A) and (D) only

The correct answer is Option (1) → (A) and (D) only

Let’s analyze [Fe(CN)₆]^3-:

• Oxidation state of Fe:

$x + 6(-1) = -3 ⇒x = +3$

So, Fe³⁺ → d⁵ configuration

• Nature of ligand: CN⁻ is a strong field ligand → causes low-spin complex
• Hybridization: Low-spin octahedral → d²sp³
• Magnetic property: Low-spin d⁵ → 1 unpaired electron
• Magnetic moment ≈ 1.73 BM (not 5.92 BM; 5.92 BM corresponds to high-spin d⁵)
• Paramagnetic? Yes, because it has 1 unpaired electron

Correct statements:

• (A)  Paramagnetic
• (D)  d²sp³ hybridization

 Answer: (A) and (D) only