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Permanent hardness of water is due to the presence of calcium & magnesium

/ CHEMICAL ENGINEERING, Chemical Process / By
Question: Permanent hardness of water is due to the presence of calcium & magnesium
[A].

bi-carbonates

[B].

sulphates & chlorides

[C].

carbonate

[D].

none of these

Answer: Option B

Explanation:

No answer description available for this question.