When Magnesium reacts with oxygen, heat is
-
A.
absorbed and the reaction is endothermic -
B.
evolved and the reaction is endothermic -
C.
evolved and the reaction is exothermic -
D.
absorbed and the reaction is exothermic
Correct Answer: Option C
Explanation
The Magnesium actually reacts with oxygen in the air, is burnt and produces a bright light. The bright light emits a lot of heat so the reaction is exothermic.