A) \[CaHC{{O}_{3}}\]
B) \[CaC{{l}_{2}}\]
C) Both (a) and (b)
D) None of these
Correct Answer: C
Solution :
Temporary hardness of water is due to the presence of bicarbonates of calcium and magnesium while permanent hardness is due to the presence of soluble chlorides and sulphates of calcium and magnesium.
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