Question

4. LPG (Liquefied Petroleum Gas) is used as fuel in kitchen. It exists as a liquid in a cylinder. When it
comes out of the cylinder, it becomes a gas (Change A). It is burnt to produce heat energy (Change
B). Which of the following statement is correct?
(a) Change A is a physical change and Change B is a chemical change.
(b) Change A is a chemical change and Change B is a physical change.
(c) Both changes A and B are physical changes.
(d) Both changes A and B are chemical changes.​

Answer 1

Answer:

i think both are physical changes