Given below are two statements : one is labelled as "Assertion A" and the other is labelled as "Reason R" Assertion A : In the complex Ni(CO)4 and Fe(CO)5, the metals have zero oxidation state. Reason

Question

Given below are two statements : one is labelled as "Assertion A" and the other is labelled as "Reason R" Assertion A : In the complex Ni(CO)4 and Fe(CO)5, the metals have zero oxidation state. Reason R : Low oxidation states are found when a complex has ligands capable of -donor character in addition to the -bonding. In the light of the above statements, choose the most appropriate answer from the options given below :

(A) Both A and R are correct and R is the correct explanation of A
(B) Both A and R are correct but R is NOT the correct explanation of A
(C) A is not correct but R is correct
(D) A is correct but R is not correct

Prashant Kotian · Accepted Answer

CO is not a  donar ligand rather it is  donar &  acceptor ligand.

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