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Question
The given reaction shows one of the processes to extract the metals like Iron and Manganese.
\[\ce{MnO2(s) + Al(s) -> Mn(l) + Al2O3(s) + Heat}\]
Give a reason why Aluminium is preferably used in thermite reactions.
Solution
Aluminium is preferably used in thermite reactions as it is placed above Fe and Mn in the reactivity series of metals.
OR
Al is more reactive than Fe/ Mn.
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