Question

9.. Calcium dihydrogen salt of EDTA is used as an
antidote for lead poisoning, why?
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Answer 1

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EDTA coordinates lead in the body because of more soluble lead - EDTA complex, which can be eliminated in urine without causing any harmful effects .

The calcium salt of EDTA is used to so that any excess EDTA will not remove

Ca2+ ions from the body.

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Answer 2

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Answer:

EDTA is also known is Ethylenediaminetetraacetate .

EDTA forms coordination compound with lead in the body . This compound being more soluble is eliminated through urine .

Calcium dihydrogen salt of EDTA is used because the calcium ions help in removing excess EDTA from the body .

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