Which one of the following materials is suitable for water purificatio – InterviewSolution

1.	Which one of the following materials is suitable for water purification
Answer» Silicons Zeolites Asbestos Quartz Solution :Permanent hardness of water can be removed by permutit method. It includes the use of complex INORGANIC salts like `Na_2Al_(2)Si_(2)O_(8).xx H_(2)O`. (zeolites) which have property of exchanging cations such as `CA^(++),MG^(++)` with sodium salt ions.

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