Lime and soda ash are added to water to remove ___________________?
Correct answer: A. Bicarbonates & sulphates of calcium and magnesium
- A. Bicarbonates & sulphates of calcium and magnesium
- B. Undesirable taste and odour
- C. Bacteria
- D. Its corrosiveness
Explanation
The lime-soda process softens water by precipitating calcium and magnesium as carbonates and hydroxides, removing their bicarbonates and sulphates. It is not primarily a method for removing taste, bacteria, or corrosiveness.
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