Identify the species oxidized. 2 al3+(aq) + 2 fe(s) → 2 al(s) + 3 fe2+(aq)

The species oxidized in the reaction is Iron Fe.

The oxidation number assigned to Al is +3

The  oxidation number assigned to Fe is +2

Here, in the reaction the oxidation number of iron Fe is increased to +3

Hence, we can conclude that the species oxidized in the reaction is Iron Fe.

To know more about oxidation number, refer to the link:

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