MCQ PracticeChemical formula of metaphosphoric acid isSubject: Chemical EngineeringTopic: Fertiliser TechnologyAH 3 PO 4BH 4 P 2 O 7CHPO 3DSame as that of pyrophosphoric acidCorrect 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