Question:

Which of the following complex shows sp³d² hybridization?

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Weak field ligands usually form outer orbital complexes.

Updated On: Mar 19, 2026

[Cr(NO₂)₆]³-
[Fe(CN)₆]⁴-
[CoF₆]³-
[Ni(CO)₄]

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The Correct Option is C

Solution and Explanation

Step 1: sp³d² hybridization corresponds to outer orbital octahedral complexes. Step 2: \beginitemize • F⁻ is a weak field ligand ⟹ no pairing. • Co³+ forms outer orbital complex. \enditemize Step 3: Hence, [CoF₆]³- shows sp³d² hybridization.

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Top Questions on Hybridisation

Match List - I with List - II.

List - I (Complex)	List - II (Hybridisation)
(A) \([\text{CoF}_6]^{3-}\)	(I) \( d^2 sp^3 \)
(B) \([\text{NiCl}_4]^{2-}\)	(II) \( sp^3 \)
(C) \([\text{Co(NH}_3)_6]^{3+}\)	(III) \( sp^3 d^2 \)
(D) \([\text{Ni(CN}_4]^{2-}\)	(IV) \( dsp^2 \)

Which of the following complex shows sp³d² hybridization?

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The Correct Option is C

Solution and Explanation

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