4th Class Science Matter and Materials Question Bank Matter and Materials

  • question_answer
    X changes to Y when it is cooled down. Select the correct option about the arrangement of molecules in X and Y.

    A)
    X Y
                   

    B)
    X Y
                   

    C)
    X Y
                   

    D)
    X Y

    Correct Answer: C

    Solution :

              On cooling, the space between particles of a matter decreases. On cooling, a gas changes into a liquid and a liquid changes into a solid. In option C, structure X represents a liquid and structure Y represents a solid.


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