This can be used as a Diwali crackers

Which metal is used in the manufacture of Diwali crackers?

Answer the following questions: What happens to the chemical energy stored in a fire cracker when it explodes?

Statement - as the festive season is round the corner, the country is on high alert due to rise in the level of pollution. So, government has given the orders to use green crackers in place of conventional crackers just few days before Diwali. These green crackers are environment friendly and cost effective fire-craker and produce 20-30% less pollution over conventional one. Which of the following is incorrect with respect to the given statement ? (I) Fire crackers release pollutant which in turn mixed with air and cause pollution. (II) In festive season the level of pollution gets increased. (III) The government is taking various steps to decline the level of pollution. (IV) the green fire crackers are quite expensive, so the shopkeepers will have to bear loss.

Which one of the following is used for making crackers?

Under which different types can the following changes be classified Bursting of a cracker

Name the following: Two non-metals used in fireworks (crackers etc.)

The flash of an exploding cracker is seen even before we hear the sound. Why?