Answer: C. ENDOTHERMIC, because energy is ABSORBED from the surrounding
Explanation:
A process in which energy is absorbed from the surroundings and stored the new bonds being made is known as endothermic reaction. Since energy is absorbed from the surroundings, the temperature decreases.
A process in which energy is released when bonds are broken to form new ones is known as exothermic reaction. The temperature increases.
In the given situation, the beaker feels cold when touched while a chemical reaction is going on inside it. It means energy is being absorbed from the surroundings thus temperature is dropping and the beaker feels cold. The chemical reaction must be endothermic reaction.
