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In the thermite process, iron oxide is reduced to molten iron by Al powder because
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a
The melting point of Fe is low
b
The reaction is highly endothermic
c
Larger amount of heat is liberated in the formation of Al2O3
d
Al is an amphoteric element
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Correct option is C
The reduction of the metallic oxide with Al is known as the thermite process. Aluminium is used as a thermite mixture in thermite welding. Al powder is used as it is a strong reducing agent and it reduces Fe2O3 to iron. Reduced molten iron sinks and flows into the gap of the grinder thereby welding it.Fe2O3 + 2Al → Al2O3 + 2Fe
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