What is a thermit reaction? What are its types? Give examples.
The process of igniting Aluminium and Ferric oxide is called thermite reaction. This is an exothermic reaction. Iron obtained in this process is in molten state.**
Fe2O3 (s) + Al (s) →Al2O3 + 2 Fe(l) + Heat
Thermite reaction used for the welding of rails (joining metals) called as thermite welding.