Biochemical Engineering - Water Treatment - Discussion

Discussion :: Water Treatment - Section 1 (Q.No.29)

29. 

Temporary hardness of water may be removed by adding

[A]. calcium hydroxide
[B]. calcium carbonate
[C]. calcium chloride
[D]. sodium bicarbonate

Answer: Option A

Explanation:

No answer description available for this question.

Yugender said: (Mar 10, 2019)  
Calcium is hardness salt. Why not it is sodium bicarbonate?

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