A water sample is said to contain permanent hardness if water contains

1.	A water sample is said to contain permanent hardness if water contains
Answer» SULPHATES and chlorides of CALCIUM and magnesium carbonates of calcium and magnesium bicarbonates of calcium and magnesium sulphates and chlorides of sodium and potassium. Solution :PERMANENT hardness of WATER is due to sulphates and chlorides of calcium and magnesium.

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