Home
Class 12
CHEMISTRY
What is chelating ligand ?...

What is chelating ligand ?

Text Solution

AI Generated Solution

### Step-by-Step Text Solution: 1. **Definition of Chelating Ligand**: A chelating ligand is a type of ligand that can form multiple bonds with a central metal atom, resulting in the formation of a stable, cyclic complex. 2. **Formation of Cyclic Rings**: Chelating ligands have two or more donor atoms that can simultaneously coordinate to a central metal atom. This results in the formation of a ring structure, which is often referred to as a chelate. 3. **Stability of Chelate Complexes**: The cyclic structure formed by chelating ligands contributes to the stability of the complex. The ability to form multiple bonds with the metal ion makes these complexes less likely to dissociate compared to complexes formed with non-chelating ligands. ...
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • COORDINATION COMPOUNDS

    AAKASH INSTITUTE ENGLISH|Exercise Try Yourself|14 Videos

  • COORDINATION COMPOUNDS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-A Objective type Questions (One Option is correct))|45 Videos

  • CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - J Aakash Challengers Questions)|6 Videos

  • ELECTROCHEMISTRY

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION - J) (Aakash Challengers Questions)|10 Videos

Similar Questions

Explore conceptually related problems

Which of the following represents chelating ligand ?

Correct the following statements by changing the under lined part of the sentence (Do not change the whole sentence) CbarN is a chelating ligand.

The chelating ligand used to remove excess of copper and iron in chelate therapy is

Assertion: Hydrazine is a neutral ligand. Reason: It has two N as donor atoms and behaves as a chelating ligand.

Excess of copper and iron are removed mainly by which of the following chelating ligands via formation of coordination compounds?

Which of the following are chelating ligands? H_(2)O C_(2)O_(4)^(2_) , EDTA^(4-) , CO_(3)^(2-) , SCN^(-) , CO, C_(2)H_(4)

Consider the two complexation equilibria in aqueous solution, between the cobalt (II) ion Co^(2+) (aq) and ethylenediamine (en) on the one hand and ammonia NH_(3) on the other. [Co(H_(2)O)_(6)]^(2+)+6NH_(3)hArr[Co(NH_(3))_(6)]^(2+)+6H_(2)O ...(1) [Co(H_(2)O_(6))]^(2+)+3enhArr[Co(en)_(3)]^(2+)+6H_(2)O ..(2) Electronicaly, the ammonia and en ligands are very similar, since both bond through N and since the liwis base strengths of their nitrogen atoms are similar. This means that DeltaH^(@) must be very similar for the two reactions, since six Co-N bonds are formed in each case. Interestingly however, the equilibrium constant is 100,000 times larger for the second reaction than it is for the first. This is the so called chelate effect: "the enhanced affinity of chelating ligands for a metal ion compared to similar non-chelating (monodentate) ligands for the same metal". The chelate effect is entropy-driven. Q. Which of the following can be classified as a chelating ligand?

Explain with examples what is meant by chelate ligands ?

Assertion (A) Toxic metal ions are removed by the chelating ligands. Reason (R) Chelate complexes tend to be more stable.

What is a bidentate ligand ? Give one example.

Home
Profile