Question

Name the reducing agent,oxidised species, reduced species in the following reaction : 3MnO2 +4 Al→3Mn + Al2O3.

Answer 1

Reducing agent is the one which gains oxygen or which reduces the other one. Here, it is Aluminium (Al).
Oxidized species is the one which gets
oxygen. Here, it is Aluminium (Al).
Reduced species is the one which looses oxygen. Here, it is Manganese (Mn).

Thanks.