question_answer

Carbon cannot be used to produce magnesium by chemical reduction of \[MgO\] because

A)  carbon is not a powerful reducing agent

B)  magnesium reacts with carbon to form carbides

C)  magnesium is less electropositive than carbon

D)  carbon does not react with magnesium

Correct Answer: B

Solution :

\[\Rightarrow \]The liberated Mg at high temperature combines with carbon and magnesium carbide is formed.