Question: Which of the following is the overall reaction of rusting?
Options
A : 2Fe(s) ? 2Fe2+ + 4e–
B : O2 (g)+4H+(aq)+4e–?2H2O(l)
C : 2Fe(s) + O2(g) + 4H+(aq) ? 2Fe2+(aq) + 2H2O(l)
D : H2O ? H+ + OH–
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