Social & Preventive Medicine Water e5900e7d

Softening is recommended when hardness of water is more than:

50mg/litre

75mg/litre

100mg/litre

150mg/litre

High-Yield Explanation

Softening is recommended when hardness of water is more than 150 mg/L (> 3mEq/ L). Softening of water is done by Temporary hardness Permanent hardness Boiling Lime NaCo3 Permutit NaC03 Base exchange

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Softening is recommended when hardness of water is more than:

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