7th Class Science Sample Paper Science Olympiad Model Test Paper-14

  • question_answer
    When a ribbon of magnesium is burnt in the air, magnesium oxide is formed. This is an example of:

    A) Physical change

    B) Chemical change

    C) Temporary change

    D) All of these

    E) None of these

    Correct Answer: B


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