Home › ICSE Class 8 › Chemistry › Chemical Reactions and Equations › A reaction that releases heat to the surrounding…
A reaction that releases heat to the surroundings is called:
A{'text': 'An endothermic reaction'}
B{'text': 'An exothermic reaction'}
C{'text': 'A photochemical reaction'}
D{'text': 'A reversible reaction'}
Answer & Solution
Correct answer: B. {'text': 'An exothermic reaction'}
1. Reactions are grouped by the heat exchange that accompanies them.
2. If heat is **released** to the surroundings the reaction is called **exothermic**.
3. Example: C + O₂ → CO₂ + heat.
4. Endothermic reactions absorb heat instead of releasing it.
_Source: Selina Concise ICSE Class 8 Chemistry Ch 6 "Chemical Reactions", Exothermic vs endothermic_
Related questions
Clear limewater turns milky white when a gas is bubbled through it. Which gas was in the bMilk left standing for a few days tastes sour. Which process has produced that taste?During a chemical reaction, what happens to the atoms of the reactants?What do we call the substances that are present before a reaction takes place?What happens to the starting substances during a chemical reaction?A reducing agent in a redox reaction is the substance thatRespiration, in which glucose combines with oxygen to release energy, is best described asThe decomposition of water into hydrogen and oxygen on passing electric current is called