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Which of These Is a Possible Cathodic Reaction That  Occurs

Question 46

Multiple Choice

Which of these is a possible cathodic reaction that  occurs during the corrosion of iron?


A) 2Fe(s) → 2Fe2+(aq) + 4e −
B) 2H+(aq) + 2e − → H2(g)
C) 2H2O(l) + 2e − → H2(g) + 2OH − (aq)
D) O2(g) + 2H2O(l) + 4e − → 4OH − (aq)
E) SO2(g) + O2(g) + 2e − → SO42 − (aq)

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