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3rd Class Science Matter and Materials Question Bank Matter and Materials

  • question_answer
    The given diagram shows two empty flasks (X and Y) connected by a glass Drop of ink tube. There is a drop of ink in the tube.      Which of the following will cause the drop of ink to move towards flask Y?                               
    a. Put flask X in a basin containing ice.
    b. Put flask Y in a basin containing ice.
    c. Put flask X in a basin containing hot water.
    d. Put flask Y in a basin containing hot water.

    A)  a and b                      

    B)  a and d     

    C)  b and c          

    D)                     c and d

    Correct Answer: C

    Solution :

    When flask 'X' is kept in a basin containing hot water, the air inside it will expand and move into the tube to push the drop of ink towards flask 'Y'. Keeping the flask 'Y' in a basin containing ice will compress the air inside it, thus, reducing the pressure in it. This will also help the drop of ink to move towards flask 'Y'.


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