Q:
      
      
         
            
Which is an example of an endothermic reaction?
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: D) photosynthesis         
         
Explanation: A chemical reaction in which involves the absorption of heat from the environment is called a Endothermic reaction. 
Examples : Dissolving ammonium chloride in water, photosynthesis, melting ice cubes, mixing of potassium chloride with water,...
 
In the contrast, chemical reactions involving release of heat are known as exothermic reactions.
Examples : Combustion, coal is burnt, mix of CaO with water,...
       
      
      
      
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