In the galvanic cell description, which process is correctly identifie…

Question

In the galvanic cell description, which process is correctly identified as oxidation at the zinc electrode?

Accepted Answer

B. $Zn \rightarrow Zn^{2+} + 2e^-$

Oxidation is loss of electrons or increase in oxidation number. At the zinc electrode, zinc metal loses two electrons to form $Zn^{2+}$, so $Zn \rightarrow Zn^{2+} + 2e^-$ is the oxidation half-reaction.

Answer

$Zn^{2+} + 2e^- \rightarrow Zn$

Answer

$Cu^{2+} + 2e^- \rightarrow Cu$

Answer

$SO_4^{2-} \rightarrow SO_4 + 2e^-$