Interpretation: The half-reaction for the reduction of aluminum ions needs to be determined.
Concept Introduction: In an
In oxidation, the loss of electrons takes place by an element and its oxidation state increases Similarly in reduction, the gain of electrons takes place by an element. Here, the oxidation state of the element decreases.
Explanation of Solution
In reduction, the gain of electrons takes place. Here, the oxidation state of a metal decreases. In the reduction of aluminum ions,
The above reaction is reduction thus, it occurs at the cathode.
Chapter 21 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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