Which ligand is used in the estimation of the | vedclass

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(A) The hardness of water is primarily due to the presence of $Ca^{2+}$ and $Mg^{2+}$ ions. $EDTA$ (Ethylenediaminetetraacetic acid) is a hexadentate

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$EDTA$

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(A) The hardness of water is primarily due to the presence of $Ca^{2+}$ and $Mg^{2+}$ ions. $EDTA$ (Ethylenediaminetetraacetic acid) is a hexadentate ligand that forms stable,water-soluble complexes with these metal ions. Due to the difference in the stability constants of their $EDTA$ complexes,$Ca^{2+}$ and $Mg^{2+}$ ions can be selectively estimated using a titration method with $EDTA$.

Which ligand is used in the estimation of the hardness of water?

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