Question

LPG cylinders are used in our kitchen in which LPG exists as a liquid. When it comes out it becomes a gas (Change - A) then it burns (Change - B). Choose the correct option: (A) Change -A is a chemical change (B) Change -B is a chemical change (C) Both A & B are chemical change (D) None of these

please explain it also I will mark the one with the best explanation with correct answer as brainliest​

Answer 1

Explanation:

Change A is physical change - In this change, the liquefied gas changes it states from liquid to gas and hence no new substance are formed.

Change B is chemical change:- Burning produces new substance and hence the reaction can't be reversed back.

Gas

burning

CO

2

+heat+othersubstance

Answer 2

Answer:

I didn't understand your question