Question

although EDTA combines with metals ions in the ratio of 1:1 irrespective of their valency to form almost exactly the same type of complexes ,yet the EDTA titration are adequately selective.. COMMENT ON THIS STATEMENT​

Answer 1

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Answer 2

Answer:

Complexometric titration is a form of volumetric titration in which the formation of a colored complex is used to indicate the end point of a titration.

The complexes are formed by the reaction of a metal ion (an acceptor, a central atom or a cation) with an anion, a neutral molecule or very rarely a positive ion.

Complexometric titrations are particularly useful for the determination of a mixture of different metal ions in solution.

An indicator capable of producing an distinct color change is usually used to detect the end point of the titration.

Complexometry:-

is the type of volumetric analysis involving the formation of complexes which are slightly ionized in solution, like weak electrolyte and sparingly soluble salt.

• Complex is formed by the reaction of metal ion (Mn+) with either an anion e.g. [Ag(cN)2]– or neutral molecule e.g. [Ag(NH3)2] +

• The metal ion is known as Central metal atom.

• The anion or neutral molecule is known as

Explanation:

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