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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.
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