Civil Engineering - Water Supply Engineering - Discussion

17. 

Hardness of water can be removed by boiling if it is due to

[A]. calcium bicarbonates
[B]. calcium sulphates
[C]. calcium chloride
[D]. calcium nitrates.

Answer: Option A

Explanation:

No answer description available for this question.

Joe said: (Jan 25, 2020)  
caco3 and ca(hco3)2 temporary hardness.
Sulphate chloride nitrate permanent hardness.

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