Assertion : $[F e (E D T A)^{-}$ complex is octahedral in shape. Reason: EDTA (Ethylenediaminetetraacetic acid) is a hexadentate ligand and undergoing $s p^{3} d^{2}$ hybridisation.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
EDTA is a hexadentate ligand . In $[F e (E D T A)]^{-}$ complex, the central metal atom undergoes $d^{2} s p^{3}$ hybridization to form octahedral complex due to EDTA as a ligand.
Thus, the assertion is correct and reason is correct explanation of it.

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Assertion :[Fe(EDTA)− complex is octahedral in shape. Reason: EDTA (Ethylenediaminetetraacetic acid) is a hexadentate ligand and undergoing sp3d2 hybridisation.

Assertion : $[F e (E D T A)^{-}$ complex is octahedral in shape. Reason: EDTA (Ethylenediaminetetraacetic acid) is a hexadentate ligand and undergoing $s p^{3} d^{2}$ hybridisation.