Civil Engineering MCQJE Level Civil Engineering
Hardness of water is usually expressed as equivalent:
Environmental EngineeringPublic Health and Environmental EngineeringHARD
Choose the correct answer
A
NaCl
B
CO2 only
C
CaCO3
D
O2
Correct Answer
C. CaCO3
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Calcium and magnesium hardness is conventionally reported as mg/L as CaCO3.
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