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Question

A chemical reaction that takes place with the evolution of heat is called a/an:

A
reversible reaction
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B
endothermic reaction
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C
thermal reaction
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D
exothermic reaction
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E
irreversible reaction
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Solution

The correct option is C exothermic reaction
An exothermic reaction is a chemical reaction that evolution of energy by light or heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation is as follows:
reactants → products + energy.
So answer is D.

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