In the diagram above, what is the half reaction that occurs at the cathode?
Al→Al3++3e−
Ni2++2e−→Ni
Ni→Ni2++2e−
2Al3++6e−→2Al
None of these
A
Al→Al3++3e−
B
Ni→Ni2++2e−
C
2Al3++6e−→2Al
D
None of these
E
Ni2++2e−→Ni
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Solution
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The half-reaction that occurs at the cathode is the reduction of Ni(II) ions to Ni atoms.
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