Question

which we used in cooking in kitchen is called liquefied petroleum gas (LPG) in cylinder it exist is a liquid when it comes out of a cylinder it becomes a gas (change-A) then it burns (change-B). the following statements pertain to these changes . choose the correct one.
(a) process-A is a chemical change.

(b) process-B is a chemical change.

(c) Both processes A and B are chemical changes.

(d) None of these processes are chemical change.​

Answer 1

Answer:

b Process b is a chemical change

Explanation:

This is because burning of anything is a chemical reaction

And Changing of state (in process A) is considered as physical change

Answer 2

Answer:

(b) process-B is a chemical change.

a is the physical change .

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