A. A reversible reaction
B. A spontaneous reaction
C. An endothermic reaction
D. An exothermic reaction
Correct Answer:
Option D – An exothermic reaction
Explanation
In salts for which the hydration energy is higher than the lattice energy, solvation occurs with a release of energy in the form of heat. A reaction in which there is a release of energy as LIGHT OR HEAT is EXOTHERMIC.