LPG is a gas cylinder is in the form of a liquid which physical and chemical changes occur when it come out of the cylinder and burns
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What is the question I didn't understood but what you said here is right LPG gas when is when it is in the cylinder it is a form of liquid its changes its States from liquid to gas this is a physical change because here only physical property of a substance is changed and it is a chemical control change in when it comes out the cylinder and it burns burning is always a chemical change and your new substances is also form so it is a chemical change
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