30 Questions
What can be predicted using the value of magnetic moment in a metal complex?
The number of unpaired electrons present
What is the primary difference between strong field and weak field ligands?
The ability to force electron pairing
What is the shape of the complex [Ni(CN)4]^2-?
Square planar
What is the hybridization involved in the complex [Ni(NH3)6]^2+?
sp^3d^2
Why did the Valence Bond Theory fail to explain the properties of metal complexes?
All of the above
What determines the extent of splitting of the degenerate d-orbitals of the metal atom?
The nature and number of ligands
What is the effective atomic number (EAN) of the complex [Cu(NH3)4]2+?
35
Which of the following complexes has a trigonal bipyramidal geometry?
[Cu][NH3]3
What is the relationship between the energy gap between the split energy levels and the magnetic properties of the complex?
The energy gap determines the magnetic properties
What is the oxidation state of the metal atom in the complex [Ag(NH3)2]Cl+?
+1
What is the primary reason for the decrease in color intensity of Turnbull's blue compared to Prussian blue?
Presence of a white compound of the formula K2{Fe[Fe(CN)6]}
Which of the following best explains the thermodynamic stability of a complex with a cyclic polydentate ligand?
Macrocyclic effect
What is the primary reason why certain geometries are more favored than others by certain metals in complexes?
Crystal field stabilization energies
What is the term used to describe the process in which a substance prevents another substance from reacting?
Masking
What is the primary reason why certain transitions between d orbitals occur in complexes?
Electronic transitions between the various d orbitals of different energies
What is the characteristic of the ligands arranged left to NH3 in organometallic compounds?
They are weaker
What type of bond is present in the compound [Cr(η-C6H6)2]?
π-bonded
What is the result of the reaction between PtCl2 and en?
Formation of [Pt(en)2Cl2]
What is the characteristic of the redox reactions in organometallic compounds?
Either oxidation or reduction is involved
What is the type of organometallic bond present in the compound (C2H5)2Zn?
Zn-C
What type of bonding is present in Ferrocene?
π-bonded
What is the name of the catalyst used for the hydrogenation of alkenes?
Wilkinson's catalyst
What type of ligand is EDTA?
Flexidentate
What is the name of the reaction that involves the chemical change in the given text?
Badecker reaction
What type of organometallic compounds are formed between metal and carbon monoxide?
Metal carbonyls
Which type of ligand forms more stable complexes as compared to monodentate ligands?
Chelating ligands
What is the characteristic of a σ-bonded organometallic compound?
Contains a metal-carbon bond
Which of the following is an example of a π-complex?
C6H5Fe(CO)3
What is the result of the reaction between [Cu(H2O)4]2+ and NH3?
A ligand substitution reaction occurs
What is the classification of compounds that contain a metal atom or a metalloid directly linked to a carbon atom of a hydrocarbon radical or molecule?
Organometallic compounds
This quiz assesses understanding of the limitations of Crystal Field Theory in explaining the properties of complexes, including absorption spectra and magnetic nature.
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