Question

Explain that the formation of magnesium chloride is a Redox reaction

Answer 1

The metal loses electrons, and in forming Mg2+it loses 2 electrons and is oxidized:

Mg(s)→Mg2++2e− (i)

And on the other hand chlorine is reduced to chloride ion by accepting electrons:

Cl2(g)+2e−→2Cl− (ii)

And (i)+(ii)= Mg(s)+Cl2(g)→MgCl2(s)

Both charge and mass are balanced, as required.

Answer 2

heya...

when hydrochloric acid reacts with magnesium,
it produces magnesium chloride with evolution of hydrogen gas...

the chemical equation will be-

Mg + 2HCl -------> MgCl2+ H2


this reaction can be also called as redox reaction becase both oxidation and reduction that is loss and gain of electrons take place

hope helped..