Question

Is Nitre used in fire extinguishers ,water purification or in making fireworks

Answer 1

• Nitre is used in making fireworks.
• Nitre is the common name of Potassium nitrate (KNO₃).
• It is also used in the production of gun powder and nitric acid.
• When firework is made then many chemical reactions takes place simultaneously and different types of colors is produced.
• Colors in the fireworks is produced due to the presence of different metals in them as we have already seen in our laboratory different metals give different colors. 2KNO₃ + S + 3C → K₂S + N₂ + 3CO₂  
• Above mentioned is the reaction of KNO₃.
• This is one of the reactions takes place during fireworks.