An oxidizing agent is a substance that causes another substance to undergo oxidation, which means the other substance loses electrons. In the process, the oxidizing agent itself undergoes reduction, meaning it gains electrons.
Oxidation refers to the loss of electrons, while reduction refers to the gain of electrons.
The oxidizing agent facilitates the oxidation of another substance and is itself reduced.
Thus, the correct answer is that the oxidizing agent oxidizes another substance and undergoes reduction itself.
The correct option is (D): It oxidizes other substance and itself undergoes reduction