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Is it true that the combustion of liquefied petroleum gas (LPG) is a chemical change?

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answer is A.

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Detailed Solution

The above statement is true.
The combustion of liquefied petroleum gas (LPG) is a chemical change. Because after the combustion process, LPG's chemical composition has changed. It can’t be reversed in the prior state by using any physical method.
The combustion of liquefied petroleum gas is an irreversible reaction, and new products such as carbon dioxide and water vapour are formed. A lot of heat is also produced by this reaction. Rest three are physical changes, so no new products are formed.

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Is it true that the combustion of liquefied petroleum gas (LPG) is a chemical change?