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  • Which ligand is used for complexing <img alt="\mathrm{Ca^{2+} and \: Mg^{2+}}" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmathrm%7BCa%5E%7B2&plus;%7D%20and%20%5C%3A%20Mg%5E%7B2&amp

Which ligand is used for complexing \mathrm{Ca^{2+} and \: Mg^{2+}} ions to estimate the hardness of water?

Option: 1

Acetic acid.


Option: 2

Acetylacetone.


Option: 3

Ethylenediaminetetraacetic acid.


Option: 4

Ethylenediamine.


Answers (1)

best_answer

EDTA complexes with \mathrm{Ca^{2+} and\: Mg^{2+}} and precipitates out of water that gives the measure of hardness of water.

Hence option 3 is correct.

Posted by

Pankaj Sanodiya

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