MCQ PracticeMain pollutants released from petroleum refineries isSubject: Chemical EngineeringTopic: Environmental Engineering In CeACO, SO 2 & H 2 SBCO 2 , NO & SO 3CCO 2 , H 2 S & NO 2DSO 3 , NO 2 & CO 2Correct Answer: APractice 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