Question

Why hard water is unfit for drinking purpose

Answer 1

• The hard water contains soluble salts of calcium (Ca) and magnesium (Mg).
• It does not give lather with soap. this is because of the precipitation of the insoluble soap.
• The hardness of water is due to chloride of calcium and bicarbonate of magnesium.
• If hard water is used for drinking purposes, it will cause a stone formation in the stomach.
• Since hard water is not free from dissolved salts, it is not suitable for drinking purposes.