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Q.

The donor sites of (EDTA)4 are ?

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a

Two N atoms and four O atoms

b

O atoms only

c

N atoms only

d

Three N atoms and three O atoms

answer is C.

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Detailed Solution

The four negatively charged O atoms and the two positively charged N atoms in  (EDTA)4 are the donor atoms. Because a single (EDTA)4 ion establishes six bonds to the Fe atom in this combination.

Hence, the correct option is C.

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