Question

Identify the substance oxidised and reduced.

a) Fe2O3 + 2Al Al2O3+ 2Fe



b) Mg + 2HCl MgCl2 + H2

Answer 1

here in a) Fe2O3 is reduced to 2Fe
and Al is oxidized to Al2O3
here in b) 2HCl is reduced to H2
and Mg is oxidised to MgCl2