2. Sample Papers
  3. 7th Class
  4. Science

7th Class Science Sample Paper Science Olympiad Model Test Paper-2

  • question_answer
    The gas we use in the kitchen is called LPG. In the cylinder it exists as liquid. When it comes out from cylinder, it becomes a gas (change A) then it burns (change B). The following options pertain to these changes. Choose the correct one.

    A) Change A is chemical change

    B) Change B is a physical change

    C) Change A is a physical change but change B is a chemical change

    D) Change B is a physical change but change A is a chemical change

    E) None of these

    Correct Answer: C

You need to login to perform this action.
You will be redirected in 3 sec spinner