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Based on the figure, which label is most consistent with the process occurring at the Zn rod? 
ACathode, because electrons are consumed there
BAnode, because zinc undergoes oxidation there
CSalt bridge, because ions move through the rod
DInert electrode, because zinc does not participate
Answer & Solution
Correct answer: B. Anode, because zinc undergoes oxidation there
The figure labels the zinc side as the anode and the notes describe $Zn \rightarrow Zn^{2+} + 2e^{-}$. Since oxidation occurs at the anode, the Zn rod is the anode here.
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