MCQ PracticeCatalyst used in ammonia synthesis uses __________ as a promoter.Subject: Chemical EngineeringTopic: Fertiliser TechnologyAPtBK 2 OCAl 2 O 3DNiCorrect 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