Question

Which half-reaction has the greatest tendency to occur at the anode in an electrochemical cell?

Answer 1

Answer: Cu2+ oxidizes to Cu will occur at the anode

Step-by-step explanation:

Reduction occurs at the cathode and oxidation occurs at the anode

Al2+ reduces to Al3+ so this will occur at the cathode which will be on the left hand

Cu2+ oxidizes to Cu which oxidizes will occurs at the anode which is placed on the right hand

Answer 2

option B is the answer
That is CU2+ oxidized to cu, and Al reduced to Al3+
At the the anode oxidation take place while at the cathode reduction reaction take place.
copper metal is placed in right hand side where oxidation take place.
half reaction for oxidation of copper is as follows
cu (s)+3CU^2+ 2e-