An example of an exothermic reaction is : C. oxidation of iron. The Exothermic process involves the liberation of heat.
What is an exothermic reaction?
An exothermic reaction is a chemical or physical reaction that gives heat. It takes out energy to its surroundings. The energy needed for the reaction to occur is less than the total energy released.
In the oxidation of iron, the heat is released while all the other processes are endothermic in which is heat is absorbed.
Thus, the correct option is C.
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