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प्रश्न
The hardness of water is estimated by ______.
पर्याय
conductivity method
EDTA method
titrimetric method
distillation method
MCQ
रिकाम्या जागा भरा
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उत्तर
The hardness of water is estimated by EDTA method.
Explanation:
The correct answer is the EDTA method. It is a type of titrimetric method where EDTA binds with calcium and magnesium ions in water, and the amount of EDTA used helps determine the water’s hardness.
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