MCQ PracticeHeating of orthophosphoric acid to 250°C producesSubject: Chemical EngineeringTopic: Fertiliser TechnologyAMetaphosphoric acidBPyrophosphoric acidCNo change in itDNone 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