☰
✕

Coordination Compounds
Question
Wired Faculty App

What do you mean be denticity and chelation?

Answer

The number of atoms through which the ligands can donate a pair of electrons is called denticity of a ligand. Ligands on this basis can be unidentate, tredentate or polydentate.
When coordination of central metal atom or ion with ligand takes place from two or more groups of the same ligands in such a way that five or six membered rings are formed with metal atom or ion then it is called chelation and such ligands is called chelating ligands.
Therefore all didentate or polydentate ligands are chelating ligands.

Sponsor Area

Some More Questions From Coordination Compounds Chapter

Write the formula for the following coordination compound:
Iron(III) hexacyanidoferrate(II)

Write the IUPAC names of the following coordination compounds:
(i) [Co(NH3)6]Cl3
(ii) [Co(NH3)5Cl]Cl2
(iii) K3[Fe(CN)6]
(iv) K3[Fe(C2O4)3]
(v) K2[PdCl4]
(vi) [Pt(NH3)2Cl(NH2CH3)]Cl.

Indicate the type of isomerism exhibited by the following complexes and draw structures for these isomers:
(i)    K[Cr(H2O)2(C2O4)2],                      (ii) [Co(en)3Cl3,
(iii) [Co(NH3)5(NO2)]|NO3]2,                 (iv) [Pt(NH3)(H2O)Cl2]

Explain on the basis of valence bond theory that [Ni(CN)4]2–  ion with square planar is diamagnetic and the [NiCl4]2– ion with tetrahedral geometry is paramagnetic.

Predict the number of unpaired electrons in the square planar [Pt(CN)4,]2– ion.

The hexaquo manganese(II) ion contains five unpaired electrons, while the hexacynoion contains only one unpaired electron. Explain using crystal field theory.