Consider the following reaction :
Fe2O3(s) + 2Al(s) → 2Fe(s) + Al2O3(s)
Which of the following statements about the given reaction is NOT correct ?
[amp_mcq option1=”It is an example of displacement reaction” option2=”It is highly endothermic reaction” option3=”Fe2O3 acts as oxidizing agent” option4=”This reaction is applicable to joining of railway tracks” correct=”option2″]
This question was previously asked in
UPSC NDA-2 – 2023
The statement that is NOT correct about the given reaction is that it is highly endothermic reaction.
The reaction Fe2O3(s) + 2Al(s) → 2Fe(s) + Al2O3(s) is known as the thermite reaction. It is a highly exothermic reaction, releasing a large amount of heat. Aluminum is more reactive than iron and displaces iron from its oxide, making it a displacement reaction. Fe2O3 is reduced (loses oxygen), so it acts as an oxidizing agent. The large amount of heat produced makes this reaction useful for welding, including joining railway tracks.