Question

5. Reactions in which heat is
evolved during the reactions,
are called exothermic reactions.
a)negative,b)posative,c).zero,d)constant *​

Answer 1

Explanation:

during a chemical reaction, energy or heat is transferred to the surroundings or in other words, heat is evolved is called an exothermic reaction. Thus, the temperature of the surroundings increases. Combustion reactions, oxidation reactions and neutralization reactions are exothermic reactions.