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MDCAT Practice Test - Practice Test - Chemistry - Electrochemistry - 2026 Quiz

Attempt 10 MCQs on MDCAT Practice Test - Practice Test - Chemistry - Electrochemistry (Year 2026) | Quiz 3

21. What is the change in oxidation number of nitrogen?



22. Which species is oxidized?



23. Which method uses changes in oxidation numbers to balance?



24. What is the ratio of Fe2+ to Cr2O7^2- in the balanced equation?



25. How many Fe2+ ions are required to reduce one MnO4- in acidic medium?



26. How many I- ions are needed to reduce one IO3-?



27. What is the coefficient of SO3^2- when balancing MnO4- + SO3^2- -> Mn2+ + SO4^2-?



28. What is the oxidation number of P in phosphoric acid?



29. What are the main components of an electrochemical cell?



30. What happens at the anode and cathode in a galvanic cell?



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