Permanent hardness of water is due to the presence of calcium & magnesium __________________? Options: A . &nbspBi-carbonates B . &nbspSulphates & chlorides C . &nbspCarbonate D . &nbspNone of these

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

Question

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

Options:

A . Bi-carbonates

B . Sulphates & chlorides

C . Carbonate

D . None of these

Answer: Option B
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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