Importance of Co-Ordination Compounds (in Qualitative Analysis, Extraction of Metals and in Biological Systems) NEET Questions

Inorganic Chemistry - Coordination Compounds

Importance of Co-Ordination Compounds (in Qualitative Analysis, Extraction of Metals and in Biological Systems) MCQ Questions


7.
In chlorophyll, the central metal ion magnesium is bonded to which type of donor atoms?
A.
Oxygen atoms
B.
Carbon atoms
C.
Nitrogen atoms of porphyrin ring
D.
Sulphur atoms
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ANSWER :
C. Nitrogen atoms of porphyrin ring
8.
Which of the following ligands is widely used as a chelating agent in the estimation of hardness of water?
A.
EDTA
B.
DMG
C.
α-nitroso-β-naphthol
D.
Cupron
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ANSWER :
A. EDTA
9.
Dimethylglyoxime (DMG) is a chelating ligand used for the qualitative detection and estimation of which metal ion?
A.
Zn²⁺
B.
Fe²⁺
C.
Ni²⁺
D.
Cu²⁺
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ANSWER :
C. Ni²⁺
10.
The hardness of water can be estimated by titration with:
A.
K₂Cr₂O₇
B.
AgNO₃
C.
Na₂EDTA
D.
KMnO₄
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ANSWER :
C. Na₂EDTA
11.
EDTA is preferred over other ligands in complexometric titrations because:
A.
It is cheap
B.
It is a strong oxidizing agent
C.
It is a hexadentate chelating ligand forming very stable 1:1 complexes
D.
It is a unidentate ligand
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ANSWER :
C. It is a hexadentate chelating ligand forming very stable 1:1 complexes
12.
Which of the following coordination compounds finds use in qualitative analysis as a chelating reagent for detection of metal ions?
A.
Wilkinson catalyst
B.
Hypo solution
C.
α-nitroso-β-naphthol
D.
Cisplatin
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ANSWER :
C. α-nitroso-β-naphthol