The coordination polyhedron geometry shown belongs to which of the following complexes?(a) [Co(NH3)6]^3+(b) [Ni(CO)4](c) [CoCl2(en)2]^2+(d) [Fe(C2O4)3]^3-This question was posed to me during an internship interview.My question is taken from Definitions topic in chapter Coordination Compounds of Chemistry – Class 12

The coordination polyhedron geometry shown belongs to which of the fol

1.	The coordination polyhedron geometry shown belongs to which of the following complexes?(a) [Co(NH3)6]^3+(b) [Ni(CO)4](c) [CoCl2(en)2]^2+(d) [Fe(C2O4)3]^3-This question was posed to me during an internship interview.My question is taken from Definitions topic in chapter Coordination Compounds of Chemistry – Class 12
Answer» Correct option is (B) [Ni(CO)4] Easiest explanation: The ARRANGEMENT shown is tetrahedral and CN=4. [Co(NH3)6]^3+ is octahedral with CN=6. Both [CoCl2(en)2]^2+ and [Fe(C2O4)3]^3- have didentate LIGANDS and hence CN=6.

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