Question

The metals like Na, K, Ca, Al cannot be obtained from their compounds by heating with carbon because their metals have more affinity for oxygen than carbon.

• A. True
• B. False

Answer 1

The correct option is A

True

The metals high up in the reactivity (Na, Mg, Ca, Al) series are very reactive. They cannot be obtained from their compounds by heating with carbon. This is because these metals have more affinity for oxygen than carbon. These metals are obtained by electrolytic reduction.