Question

The gas we use in the kitchen is called Liquified petroleum gas (LPG). In the cylinder it exists as a liquid. When it comes out from the cylinder, it becomes gas (Change - A) then it burns (Change - B).
The following statements pertain to these changes.
Choose the correct one:-

i. Process A is a chemical change
ii. Process B is a chemical change
iii. Both processes A and B are chemical changes
iv. None of these processes is a chemical change

Answer 1

Answer:

2 process will happen in cyclinder

Answer 2

The correct answer of this question is option 3, process B is a chemical change.
Explanation:
The process A is occurred due to the change of atmospheric pressure and that's why it is a physical change.
On the other hand,
The process B is occured with the help of the oxygen reaction and new products are created after the combustion and that's why it is a chemical change.
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