One of the following is an endothermic reaction. This is: (a) Combination of carbon and oxygen to form carbon monoxide (b) Combination of nitrogen and oxygen to form nitrogen monoxide (c) Combination of glucose and oxygen to form carbon dioxide and water(d) Combination of zinc and hydrochloric acid to form zinc chloride and hydrogen
One of the following is an endothermic reaction. This is: (a) Combination of carbon and oxygen to form carbon monoxide (b) Combination of nitrogen and oxygen to form nitrogen monoxide (c) Combination of glucose and oxygen to form carbon dioxide and water(d) Combination of zinc and hydrochloric acid to form zinc chloride and hydrogen

Answer:

Option (b) is the correct response. Nitrogen monoxide is formed when nitrogen and oxygen are heated to extremely high temperatures in an endothermic reaction.