Question

d2sp3 hybridisation present in -
1. [CO(NH3)6]3+
2. [Cr(NH3)6]3+
3. [Fe(CN)6]4-
4. [CoF6]3-​

Answer 1

Answer:

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Answer 2

3. [Fe(CN)6]4-

d2sp3 means involvement of inner d orbitals since CN is a strong ligan_d this will cause pairing of Fe2+ electrons .