Coordination Number NEET Questions

Inorganic Chemistry - Coordination Compounds

Coordination Number MCQ Questions


1.
Coordination number of a central metal atom/ion in a complex is defined as:
A.
The total charge on the complex
B.
The oxidation state of the metal
C.
The number of ligand donor atoms directly bonded (via sigma bonds) to the metal
D.
The number of ligand molecules around the metal regardless of denticity
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ANSWER :
C. The number of ligand donor atoms directly bonded (via sigma bonds) to the metal
2.
Pi (Ο€) bonds between the ligand and central metal are:
A.
Not counted in determining coordination number
B.
Counted only in square planar complexes
C.
Counted only in tetrahedral complexes
D.
Counted in determining coordination number
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ANSWER :
A. Not counted in determining coordination number
3.
Which of the following is NOT a common coordination number for transition metal complexes?
A.
6
B.
9
C.
4
D.
5
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ANSWER :
B. 9
4.
What is the secondary valence in Werner's terminology equivalent to in modern terminology?
A.
Electronegativity
B.
Atomic number
C.
Oxidation number
D.
Coordination number
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ANSWER :
D. Coordination number
5.
The coordination number gives information about:
A.
Color only
B.
The geometry/shape of the complex
C.
Magnetic moment only
D.
Boiling point
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ANSWER :
B. The geometry/shape of the complex
6.
The coordination number of the central metal in a complex depends on:
A.
Only the charge on the metal
B.
Only the size of the ligand
C.
Only the size of the metal ion
D.
Both size of metal ion, charge, and the nature/size of ligand
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ANSWER :
D. Both size of metal ion, charge, and the nature/size of ligand