If heat is written on the products side of a chemical equation, what is the nature of the reaction?
Answer and explanation
Correct answer: Exothermic
Writing heat on the products side means that heat is produced and released to the surroundings during the reaction. Such a reaction is called exothermic. In an endothermic reaction, heat is absorbed, so it is conventionally shown on the reactants side. The labels displacement and decomposition describe possible substance changes, not the heat direction, so they cannot be concluded from this information. Option A is correct.
Frequently asked questions
What is the correct answer to this question?
Exothermic
Why is this the correct answer?
Writing heat on the products side means that heat is produced and released to the surroundings during the reaction. Such a reaction is called exothermic. In an endothermic reaction, heat is absorbed, so it is conventionally shown on the reactants side. The labels displacement and decomposition describe possible substance changes, not the heat direction, so they cannot be concluded from this information. Option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Chemical Reactions and Equations.
