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Flashcards on Coordination Compounds
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What are coordination compounds?
Complex compounds formed by the coordination of a central metal ion with ligands.
What is a ligand in coordination chemistry?
An ion or molecule that donates a pair of electrons to the central metal ion.
What is a coordination number?
The number of ligands attached to the central metal ion.
What is the purpose of writing coordination compounds using square brackets?
To clearly show the coordination sphere of the complex.
What is the formula for calculating the oxidation number of a coordination complex?
Oxidation number = charge on the central metal ion + charge on ligands - overall charge of the complex.
What is a chelate ligand?
A ligand that forms a ring structure with the central metal ion.
What is the coordination geometry of a complex with four ligands?
Tetrahedral
What is the coordination geometry of a complex with six ligands?
Octahedral
What is cis-trans isomerism in coordination compounds?
Different spatial arrangements of ligands around the central metal ion.
What is the significance of coordination compounds in biological systems?
They play essential roles in various biological processes, such as oxygen transportation and enzyme activity.
What are the uses of coordination compounds in industry?
They are used as catalysts, pigments, and in medicine.
What is the common ligand in hemoglobin?
Heme
What is the charge of the central metal ion in a complex with the ligands Cl- and NH3?
+3
What is the color of the complex [Cu(NH3)4]2+?
Pale blue
What is the chemical formula of the coordination compound commonly known as vitamin B12?
Cobalamin
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Test Your Knowledge
What is a coordination compound?
A compound formed only by coordination bonds
A complex compound formed by the coordination of a central metal ion with ligands
A compound that exhibits coordination isomers
A compound with a coordination number of zero
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What is the role of a ligand in coordination compounds?
To absorb light and produce color
To donate a pair of electrons to the central metal ion
To determine the coordination geometry
To stabilize the complex at high temperatures
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How is the coordination number of a complex determined?
By the number of ligands in the coordination sphere
By the number of ligands attached to the central metal ion
By the overall charge of the complex
By the electronic configuration of the central metal ion
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Which geometry is most commonly observed in complexes with a coordination number of 6?
Linear
Trigonal planar
Octahedral
Square planar
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What is the oxidation number of the central metal ion in the complex [Fe(CN)6]4-?
+4
+2
0
-2
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Which ligand is capable of forming chelate complexes?
Ammonia (NH3)
Ethylenediamine (en)
Chloride (Cl-)
Water (H2O)
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What is the color of the complex [Cu(H2O)6]2+?
Red
Blue
Green
Yellow
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What is cis-trans isomerism in coordination compounds?
Isomers with different overall charge
Isomers with different spatial arrangements of ligands
Isomers with different coordination numbers
Isomers with different ligand field strengths
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What is the primary role of coordination compounds in biological systems?
To provide structural support
To perform essential functions in various biological processes
To act as inhibitors of enzyme activity
To facilitate cellular respiration
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What are the uses of coordination compounds in industry?
As catalysts, pigments, and medicine
As conductors of electricity
As building materials
As sources of renewable energy
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