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  4. In the thermite process, iron oxide is reduced to molten iron by aluminium powder because

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Q. In the thermite process, iron oxide is reduced to molten iron by aluminium powder because

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Solution:

Al has high affinity for oxygen, because $ A{{l}_{2}}{{O}_{3}} $ is highly stable compound, so Al reduces iron oxide to molten iron due to high $ \Delta H(-ve) $ value. (Thermite process for reduction of metal generates a lot of heat).