Chemistry
Grade-10
Easy
Question
A chemical reaction that releases energy by light or heat
- Endothermic Reaction
- Exothermic Reaction
- Diffusion
- Fission
Hint:
The process of chemical transformation of one set of a chemical substance into another set is termed a 'chemical reaction'.
The correct answer is: Exothermic Reaction
A chemical reaction that releases energy by light or heat is known as an Exothermic reaction.
For example, the neutralization reaction between sodium hydroxide and hydrochloric acid is an exothermic reaction because when sodium hydroxide is poured into a beaker having hydrochloric acid and a thermometer, the thermometer shows a rise in temperature.
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