Assertion (A): In the alumino thermite process, the metals like iron melt due to the heat evolved in the reaction.
Reason (R): The reaction is: Fe 2 O 3 + 2Al → Al 2 O 3 + 2Fe
- The thermite process is an exothermic reaction.
- A large amount of heat is evolved in the process (>3000℃) which melts iron.
- This heat is also used for welding.
- The Assertion is True.
- Reason is also True.
And the Reason is NOT the correct explanation for the assertion.
So, the correct answer is (b)