The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer.
Assertion : Oxidation state of Fe in `Fe(CO)_5` is zero . ltbegt Reason : EAN of Fe in its complex is always 36.

Assertion : Oxidation state of Fe in Fe(CO)_3 is zero. Reason : EAN of Fe in this complex is 36.

STATEMENT-1: Oxidation state of Fe in Fe(CO)_(5) is zero and STATEMENT-2: EAN of Fe in its complexes is always 36.

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer. Assertion : The ligand N_3^(-) is named as nitrido. Reason : It is derived from NH_3 .

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer. Assertion : In Zeise's salt, co-ordianation number of Pt is five. Reason : Ethene is a bidentate lignad .

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer. Assertion : In Zeise's salt, co-ordianation number of Pt is five. Reason : Ethene is a bidentate lignad .

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer. Assertion : The ligands nitrio-N and nitrio-O are ambident in nature . Reason : The ligands give linkage isomers.

STATEMENT-1: Oxidation state of Fe in Fe(CO)_(5) is zero and STATEMENT-2: EAN of Fe in this complex is 36.

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer. Assertion : The complex [Ni(CN)_4]^(2-) is diamagnetic in nature . Ni^(2+) ion in the complex is dsp^(2) hybridised .

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer. Assertion : Ni("dmg")_2 is a square planar complex. Reason : Chelation effect is present in Ni("dmg")_2 .