MCQ PracticeTemporary hardness of water can be removed bySubject: Chemical EngineeringTopic: Chemical ProcessAAddition of alum (a coagulant)BBoilingCFiltration (through gravity sand filter)DAddition of limeCorrect Answer: BPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the