Civil Engineering MCQAE Level Civil Engineering
Lime is added to water/wastewater samples to
Environmental EngineeringEnvironmental EngineeringMEDIUM
Choose the correct answer
A
destabilise colloidal oil and organic emulsion suspension
B
assist precipitation of metals as hydroxides by lowering pH
C
remove calcium hardness
D
convert calcium carbonate to calcium bicarbonate
Correct Answer
C. remove calcium hardness
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Lime treatment softens water by removing hardness-forming calcium/magnesium compounds
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.