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Which of the following is/are correct?...

Which of the following is/are correct?

A

Ligands with filled `pi` orbitals are called `pi` donors

B

`pi` donor ligand forms sigma bond with metal `t_(2g)` orbital

C

Ligand to metal charge transfer favoured when the central metal has a high oxidation state

D

Delocalization of `pi` electrons from the ligand to the metal rduces the value of `triangle_(0)`

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The correct Answer is:
a,d
(A) is correct answer. (B) is incorrect because `pi` donor ligand form `pi` bond and C is incorrect. (D) is correct answer.
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