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.

Answer 1

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.