in joining railway tracks or cracked machine parts reaction of Fe2o3 with aluminium is utilised give reason

in joining railway tracks or cracked machine parts reaction of Fe2o3 w

1.	in joining railway tracks or cracked machine parts reaction of Fe2o3 with aluminium is utilised give reason
Answer» eaction (metal OXIDE with aluminium) are highly exothermic(large amount of HEAT is released ). Due to the large amount of heat produced , the metals are produced in molten state. This reduction PROPERTY of aluminium is used in welding BROKEN PIECES of heavy iron objects like railway tracks.