MCQ PracticeThere are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant?Subject: Chemical EngineeringTopic: Environmental Engineering In CeAMercuryBArsenicCAluminiumDLeadCorrect Answer: CPractice 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