MCQ PracticeOre concentration by froth floatation utilises the __________ of ore particles.Subject: Chemical EngineeringTopic: Chemical ProcessADensity differenceBWetting characteristicsCTerminal velocitiesDNone of theseCorrect 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