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Question
The ligand used in the estimation of the hardness of water is ______.
Fill in the Blanks
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Solution
The ligand used in the estimation of the hardness of water is EDTA.
Explanation:
EDTA forms a stable complex with metal ions like calcium (Ca2+) and magnesium (Mg2+), which are responsible for water hardness. By measuring the amount of EDTA required to bind these ions, the hardness of water can be determined.
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