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The coordination polyhedron geometry shown belongs to which of the following complexes?
Options
A : [Co(NH3)6]3+
B : [Ni(CO)4]
C : [CoCl2(en)2]2+
D : [Fe(C2O4)3]3-
Which of the following compounds consists of a homoleptic complex?
Options
A : [Co(NH3)6]Cl3
B : [Co(NH3)5Cl]Cl2
C : [Co(NH3)4Cl2]Cl
D : [Co(NH3)5(CO3)]Cl
What is the denticity of the ligand shown in the figure?
Options
A : 2
B : 4
C : 6
D : 8
The oxidation number of the central metal ion in a coordination entity is the charge it would carry if all the _________ are removed along with the electron pairs that are shared with it.
Options
A : lewis acids
B : anions
C : ligands
D : didentate ligands
What is the shape of the coordination polyhedron of [PtCl4]2-?
Options
A : Linear
B : Square planar
C : Tetrahedral
D : Octahedral
What is the correct way of representing nickel in [Ni(CO)4]?
Options
A : Ni(0)
B : Ni(I)
C : Ni(II)
D : Ni(III)
The coordination number is determined by the number of both, sigma and pi bonds formed by the ligand with the central atom/ion.
Options
A : True
B : False
C :
D :
The oxidation number of the central metal in a coordination entity is always a positive quantity.
Options
A : True
B : False
C :
D :
Complexes in which a metal is attached to only one kind of donor group is called _______
Options
A : Unidentate
B : Chelate
C : Homoleptic
D : Heteroleptic
When a polydentate ligand uses all its donor atoms simultaneously to bond to a single metal ion, it is said to be a _______ ligand.
Options
A : unidentate
B : didentate
C : chelate
D : ambidentate
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