MCQ PracticeMagnesium and calcium __________ cause temporary hardness of water.Subject: Chemical EngineeringTopic: Chemical ProcessACarbonatesBBicarbonatesCPhosphatesDSulphatesCorrect 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