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What is a chemical reaction called in which heat is absorbed from the surroundings?

Answer and explanation

Correct answer: Endothermic reaction

The governing concept is the direction of heat transfer between a reacting system and its surroundings. If the system absorbs heat from the surroundings, the reaction is endothermic; its enthalpy change is positive under the usual convention. Hence option B is correct. An exothermic reaction releases heat, while displacement and neutralisation classify reactions by substance exchange or products, not by absorption of heat.

Related tags

Class 10 ScienceEndothermic ReactionHeat AbsorptionChemical ReactionsChemical Reactions And EquationsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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