Question

Which is an example of an endothermic reaction?
A) combustion
B) mix of CaO with water
C) coal is burnt
D) photosynthesis

Answer 1

Endothermic Example 1: Photosynthesis. Endothermic reactions are fairly common. One of the most common examples of an endothermic reaction can be found in your garden. Photosynthesis, the reaction which allows plants to use sunlight to produce food and energy.

so the answer is photosynthesis

Answer 2

B) mix of CaO with water