${\mathrm{Ca}}^{2+}$ makes which type of complex with EDTA?

Important Questions on Coordination Compounds

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

The stabilisation of coordination compounds due to chelation is called the chelate effect. Which of the following is the most stable complex species?

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Select the incorrect statement.

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Which of the following system is most stable for a chelate?

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Explain why ${\left[\mathrm{Cu}(\mathrm{en}{)}_2\right]}^{2+}$ is less stable than ${\left[\mathrm{Fe}\left(\mathrm{EDTA}\right)\right]}^{-}$?

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Chelation can occur in:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Which of the following complexes is not a chelate?

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

A chelating agent has two or more than two donor atoms to bind to a single metal ion. Which of the following is not a chelating agent?

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Figure out the closed ring compounds formed by bidentate ligands, on binding to metal or metal ions:

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Number of the following statements is/are correct?
$\left(\mathrm{A}\right)$ Greater the stability constant of a complex ion, greater is its stability
$\left(\mathrm{B}\right)$ Greater the oxidation state of the central metal ion, greater is the stability of the complex
$\left(\mathrm{C}\right)$ CO stabilizes complex because of its synergic Bonding.
$\left(\mathrm{D}\right)$ Chelate complexes have low stability constants

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

When EDTA solution is added to ${\mathrm{M}\mathrm{g}}^{2+}\mathrm{ }$ion solution, then which of the following statements is not true?

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Since chelate rings containing over six atoms are generally not stable, a single bidentate chelating ligand cannot replace two monodentate ligands which are located in the trans positions of a square planar complex.

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Amongst the following, the most stable complex is

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Select correct statement :

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Select the incorrect statement.

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

The name of the ring structure complex compound formed between metal ion and polydentate ligand is

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

What is meant by the chelate effect? Give an example.

HARD

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

In the complexes ${\left[\mathrm{Fe}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{3+},\mathrm{ }{\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]}^{3-},\mathrm{ }{\left[\mathrm{Fe}{\left({\mathrm{C}}_2{\mathrm{O}}_4\right)}_3\right]}^{3-}\mathrm{ }\mathrm{and}\mathrm{ }{\left[{\mathrm{FeCl}}_6\right]}^{3-},$ more stability is shown by

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Which can form chelates?

EASY

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Chelation can occur in:

MEDIUM

Chemistry>Inorganic Chemistry>Coordination Compounds>Chelation

Select the correct statement.