Which among the following is an example of an endothermic chemical reaction?

💡 Solution & Explanation

The dissolution of ammonium chloride in water is an endothermic chemical process because it absorbs thermal energy from the immediate surroundings, resulting in a noticeable decrease in solution temperature. Combustion, cellular respiration, and acid-base neutralization reactions are exothermic processes that release heat into the environment. Differentiating between endothermic and exothermic reactions is a fundamental topic in chemistry tested across various civil services tests.