MCQ PracticeWashing of coal is done toSubject: Chemical EngineeringTopic: Chemical ProcessARemove the inherent impuritiesBRemove the adhering impuritiesCReduce the ash contentDBoth B and CCorrect Answer: DPractice 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