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Solution


Q.

The oxidation reaction which produces heat and light is called:
1 Endothermic  
2 Photochemical  
3 Exothermic  
4 Combustion  

Ans.

(4)

A combustion reaction is a kind of chemical reaction in which a reaction between any combustible substance and an oxidiser takes place in order to form an oxidised product accompanied by the evolution of heat and light during the reaction.