Question

Identify the type of reaction indicated by line $A$ in the diagram.

• A. Uncatalyzed exothermic
• B. Catalyzed exothermic
• C. Catalyzed endothermic
• D. Uncatalyzed endothermic
• E. Reversible

Answer 1

Answer: (D)

Uncatalyzed endothermic

A – Uncatalyzed endothermic reaction.

B – Catalyzed endothermic reaction.

C – Catalyzed exothermic reaction.

Here A is uncatalyzed reaction because it requires a maximum activation energy for initiating the reaction.

Also, it is an endothermic reaction as the energy of the product is greater than the energy of the reactant.

Hence the correct option is D.