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Coordination compounds used in the estimation of hardness of water. |
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Answer» SOLUTION :(1) The HARDNESS of water is due to the pressnce `MG^(2+)andCa^(2+)` ion in water. (2) The strong field ligand EDTA form stable complexes with `Mg^(2+)andCa^(2+)`. Hence these ions can be removed by adding EDTA to hard water. Similarly, these ions can be SELECTIVELY estimated due to the difference in their STABILITY constants. |
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