Question

identify the oxidizing agent
Cr2+2Al ------> 2Cr + Al2O3​

Answer 1

Answer:

O which is Oxygen..is the oxidizing agent

Answer 2

Oxidizing Agent - Cr

Here the oxidation number of all the elements will change as

Cr(+2) - cr(0)

Al(0) - Al (+3)

That means the oxidation number of Al is increasing from 0 to +3 and the oxidation number of Cr is decreasing from +2 to 0

And the oxidising agent is the element pr compound that receives the electron and gets reduced and oxidises the other element

here in this case Cr will be the oxidising agent as it has accepted electrons and its oxidation number is reduced.