Which one of the following processes will produce hard water?

Question

Which one of the following processes will produce hard water?

Which one of the following processes will produce hard water?
(a) Saturation of water with CaCO₃
(b) Saturation of water with MgCO₃
(c) Saturation of water with CaSO₄
(d) Addition of Na₂SO₄ to water.

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

(c) : Permanent hardness is introduced when water passes over rocks containing the sulphates or chlorides of both of calcium and magnesium.

4 views Answered 2023-02-05 15:29