Chapter 20, Problem 20.118CHP

Interpretation Introduction

Interpretation:

The role ${\text{EDTA}}^{\text{4-}}$ as trace additive to mayonnaise and does glycinate ion serve as effective substitute for ${\text{EDTA}}^{\text{4-}}$ should be identified.

Concept Introduction:

The transition metal atoms have tendency to form complex compounds that are linked to the certain neutral or ionic species which leads to the formation of coordination compounds.  There exist a large number of coordination compounds that have a large number of applications in the chemical industry as well as in daily life.

Ligands: The ions or molecules that forms coordination covalent bond with metal ions in a coordination compound.  Ligands should have minimum one lone pair of electron, where it donates two electrons to the metal.  Metal atom accepts the electron pair from a ligand forming a coordination bond.

Mono dentate ligand is ligands which donate only one pair of electrons to form bond with metal. It only makes one bond with metal.  Polydentate ligand forms two or more coordination bond with metal ions to form a complex.