Burning of LPG at home is an example of
slow combustion
rapid combustion
spontaneous combustion
explosion

Correct Answer: (b) rapid combustion

Explanation: LPG burns rapidly and produces heat and light. When the gas burns in air it is a chemical change. Combustion of LPG is a chemical change because, after its combustion, the new substance formed changes chemically and cannot be turned back into LPG. Therefore, the burning of LPG is an example of rapid combustion.