Question

Which metal oxide will be reduced by heating with iron?

A calcium oxide
B lead oxide
C magnesium oxide
D zinc oxide

Answer 1

calcium oxide

Step-by-step explanation:

Correct option is A)

Magnesium metal is an alkaline earth metal. The tendency of these metals is to lose electron. They lose electron and form oxide. Now, they are stable hence it is very difficult for them to again gain that electron. Hence, they are not reduced by normal reducing agents.