Coordination Number NEET Questions

Inorganic Chemistry - Coordination Compounds

Coordination Number MCQ Questions


7.
Which type of ligand contributes 1 to the coordination number?
A.
Unidentate (monodentate)
B.
Hexadentate
C.
Tridentate
D.
Bidentate
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ANSWER :
A. Unidentate (monodentate)
8.
A bidentate ligand contributes _____ to the coordination number per ligand:
A.
2
B.
4
C.
1
D.
3
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ANSWER :
A. 2
9.
EDTA⁴⁻ is a hexadentate ligand. The coordination number of the metal in [M(EDTA)]ⁿ⁻ is:
A.
5
B.
8
C.
6
D.
4
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ANSWER :
C. 6
10.
The denticity of a ligand refers to:
A.
Number of ligands per metal
B.
Its molecular weight
C.
Its charge
D.
The number of donor atoms with which it binds the central metal simultaneously
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ANSWER :
D. The number of donor atoms with which it binds the central metal simultaneously
11.
An ambidentate ligand contributes how much to the coordination number?
A.
Variable depending on metal
B.
Always 0
C.
Always 1 (since it can use only one of the two possible donor atoms at a time)
D.
Always 2
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ANSWER :
C. Always 1 (since it can use only one of the two possible donor atoms at a time)
12.
In which type of complex is the coordination number normally constant for the central metal?
A.
Complexes always have variable CN
B.
Only ionic complexes have fixed CN
C.
CN changes with temperature only
D.
Werner-type complexes for a given metal in a given oxidation state — coordination number is generally fixed
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ANSWER :
D. Werner-type complexes for a given metal in a given oxidation state — coordination number is generally fixed