Question

why carbon cannot reduce the oxides of sodium(Na) and magnesium(Mg)? ​

Answer 1

because both are highly reactive metals

so, Carbon can't reduse the oxides of sodium and magnesium.

here is your answer

Answer 2

Answer:

This is because sodium and magnesium are more reactive than carbon. This means that carbon cannot reduce the oxides of these metals. The two metals are above carbon in the reactivity series and thus have a high affinity to oxygen than carbon does and thus cannot be reduced by it.