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प्रश्न
The gas we use in the kitchen is called liquefied petroleum gas (LPG). In the cylinder, it exists 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.
विकल्प
Process − A is a chemical change
Process − B is a chemical change.
Both processes A and B are chemical changes.
None of these processes is a chemical change
उत्तर
Process − B is a chemical change.
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