Chemistry

Coordination Chemistry

319 Questions

Coordination chemistry focuses on coordination compounds, their structures, and their magnetic properties. The questions cover primary and secondary valencies, ligand types, and geometries of complexes. This topic is heavily tested in chemistry competitive exams and requires a good grasp of molecular structures.

primary and secondary valencycomplex geometriesligand field theorymagnetic properties of complexesisomerism in complexes

Coordination Chemistry Questions

Multiple choice

Which of the following complexes is likely to exhibit charge transfer?

  1. [Co(NH3)6]3+

  2. [Ni(CN)4]2-

  3. [Fe(H2O)6]3+

  4. [Cr(en)3]3+
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Charge transfer is more likely to occur in complexes where the metal ion and ligands have different electronegativities. [Fe(H2O)6]3+ has a high electronegative metal ion (Fe3+) and low electronegative ligands (H2O), making it susceptible to charge transfer.

Multiple choice

What is the term used to describe the interaction between metal ions and ligands in a coordination complex?

  1. Crystal field splitting.

  2. Jahn-Teller effect.

  3. Ligand field stabilization energy.

  4. Metal-ligand bonding.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Metal-ligand bonding refers to the interactions between metal ions and ligands in a coordination complex. These interactions can be classified into various types, such as ionic bonding, covalent bonding, and coordinate bonding.

Multiple choice

Which of the following is an example of a transition metal complex?

  1. Sodium chloride

  2. Iron(III) chloride

  3. Water

  4. Carbon dioxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A transition metal complex is a compound that contains a transition metal ion surrounded by ligands. Iron(III) chloride is an example of a transition metal complex because it contains an iron(III) ion surrounded by chloride ligands.

Multiple choice

What is the name of the process by which transition metals can form multiple bonds with other atoms?

  1. Hybridization

  2. Complexation

  3. Oxidation

  4. Reduction
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hybridization is the process by which transition metals can form multiple bonds with other atoms.