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The gas we use in the kitchen is called liquified petroleum gas (LPG). In the cylinder it exist as a liquid. When it comes out from the cylinder it becomes a gas (Change – A) then it burns (Change – B). The following statements pertain to these changes. Choose the correct one.
Change A is a :
The liquefied gas changes its state from liquid to gas; hence, no new substance is produced.
Change B is :
Burning produces a new substance, so the reaction can't be reversed.
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