Question:
Hardness of water is due to the presence of:
Hardness of water is due to the presence of:
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Hardness in water is caused by calcium and magnesium salts, which do not easily dissolve and interfere with the effectiveness of soaps and detergents.
Updated On: July 22, 2025
- Sodium and Potassium salt
- Calcium and magnesium salt
- Lead and copper salt
- None of these
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The Correct Option is B
Solution and Explanation
Hardness of water is primarily caused by the presence of dissolved calcium and magnesium salts, which form insoluble precipitates when soap is used, making the water "hard." Sodium and potassium salts do not contribute to hardness in water, while lead and copper salts are not common contributors to hardness.
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