question_answer

  What is an oxidation reaction? Give an example of oxidation reaction. Is oxidation an exothermic or an endothermic reaction?                         [CBSE Delhi 2009]

Answer:

                  The reaction in which oxygen combines with other elements or compounds is known as an oxidation reaction. For example, burning of hydrogen is an oxidation process in which hydrogen combines with oxygen to form water.                 2H2(g)+02(g) ® 2H2(1) Oxidation reactions are exothermic.