Cordination Chemistry

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Questions and Answers

What can be predicted using the value of magnetic moment in a metal complex?

  • The number of unpaired electrons present (correct)
  • The oxidation state of the metal
  • The type of hybridization involved
  • The type of ligand involved

What is the primary difference between strong field and weak field ligands?

  • The type of metal ion involved
  • The geometry of the complex formed
  • The number of unpaired electrons
  • The ability to force electron pairing (correct)

What is the shape of the complex [Ni(CN)4]^2-?

  • Square planar (correct)
  • Tetrahedral
  • Octahedral
  • Linear

What is the hybridization involved in the complex [Ni(NH3)6]^2+?

<p>sp^3d^2 (D)</p> Signup and view all the answers

Why did the Valence Bond Theory fail to explain the properties of metal complexes?

<p>All of the above (D)</p> Signup and view all the answers

What determines the extent of splitting of the degenerate d-orbitals of the metal atom?

<p>The nature and number of ligands (D)</p> Signup and view all the answers

What is the effective atomic number (EAN) of the complex [Cu(NH3)4]2+?

<p>35 (B)</p> Signup and view all the answers

Which of the following complexes has a trigonal bipyramidal geometry?

<p>[Cu][NH3]3 (A)</p> Signup and view all the answers

What is the relationship between the energy gap between the split energy levels and the magnetic properties of the complex?

<p>The energy gap determines the magnetic properties (B)</p> Signup and view all the answers

What is the oxidation state of the metal atom in the complex [Ag(NH3)2]Cl+?

<p>+1 (D)</p> Signup and view all the answers

What is the primary reason for the decrease in color intensity of Turnbull's blue compared to Prussian blue?

<p>Presence of a white compound of the formula K2{Fe[Fe(CN)6]} (D)</p> Signup and view all the answers

Which of the following best explains the thermodynamic stability of a complex with a cyclic polydentate ligand?

<p>Macrocyclic effect (C)</p> Signup and view all the answers

What is the primary reason why certain geometries are more favored than others by certain metals in complexes?

<p>Crystal field stabilization energies (B)</p> Signup and view all the answers

What is the term used to describe the process in which a substance prevents another substance from reacting?

<p>Masking (D)</p> Signup and view all the answers

What is the primary reason why certain transitions between d orbitals occur in complexes?

<p>Electronic transitions between the various d orbitals of different energies (C)</p> Signup and view all the answers

What is the characteristic of the ligands arranged left to NH3 in organometallic compounds?

<p>They are weaker (D)</p> Signup and view all the answers

What type of bond is present in the compound [Cr(η-C6H6)2]?

<p>π-bonded (A)</p> Signup and view all the answers

What is the result of the reaction between PtCl2 and en?

<p>Formation of [Pt(en)2Cl2] (D)</p> Signup and view all the answers

What is the characteristic of the redox reactions in organometallic compounds?

<p>Either oxidation or reduction is involved (D)</p> Signup and view all the answers

What is the type of organometallic bond present in the compound (C2H5)2Zn?

<p>Zn-C (C)</p> Signup and view all the answers

What type of bonding is present in Ferrocene?

<p>π-bonded (A)</p> Signup and view all the answers

What is the name of the catalyst used for the hydrogenation of alkenes?

<p>Wilkinson's catalyst (D)</p> Signup and view all the answers

What type of ligand is EDTA?

<p>Flexidentate (D)</p> Signup and view all the answers

What is the name of the reaction that involves the chemical change in the given text?

<p>Badecker reaction (D)</p> Signup and view all the answers

What type of organometallic compounds are formed between metal and carbon monoxide?

<p>Metal carbonyls (B)</p> Signup and view all the answers

Which type of ligand forms more stable complexes as compared to monodentate ligands?

<p>Chelating ligands (D)</p> Signup and view all the answers

What is the characteristic of a σ-bonded organometallic compound?

<p>Contains a metal-carbon bond (A)</p> Signup and view all the answers

Which of the following is an example of a π-complex?

<p>C6H5Fe(CO)3 (B)</p> Signup and view all the answers

What is the result of the reaction between [Cu(H2O)4]2+ and NH3?

<p>A ligand substitution reaction occurs (A)</p> Signup and view all the answers

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?

<p>Organometallic compounds (B)</p> Signup and view all the answers

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