An exothermic process is one that involves the outflow of energy, which might take the form of light or heat. An endothermic process, on the other hand, is one in which the system absorbs heat from its surroundings primarily in the form of heat energy.
Question : Combustion of a candle is an
Option 1: photochemical reaction
Option 2: physical change
Option 3: endothermic reaction
Option 4: exothermic reaction
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