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Softening is recommended when hardness of water is more than:

Home › MCQ Questions › Social & Preventive Medicine › Softening is recommended when hardness of water is more than:

Social & Preventive Medicine

Softening is recommended when hardness of water is more than:

💡 Explanation

Softening is recommended when hardness of water is more than:

✓ Correct Answer: D. 150mg/litre

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