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The metal d-orbitals that are directly facing the ligands in K 3 [Co(CN) 6 ] are -

1. 2 2 y x d − and 2 z d
2. d xy , d xz and d yz
3. d xz , d yz and 2 z d
4. d xy and 2 2 y x d −

Correct answer: 2 2 y x d − and 2 z d

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