Choose the correct alternative:

Statement 1:  During rapid combustion, a substance burns instantly and produces a lot of heat and light.

Statement 2:  Burning of LPG is an example of rapid combustion.

Both statements are correct.

The combustion which takes place instantly with a release of a huge amount of heat and light is known as rapid combustion. It requires an external supply of heat to initiate once. So statement 1 is correct. When a lit matchstick is brought near LPG, it burns instantly, hence it So d is an example of rapid combustion. So statement 2 is also correct.