9th Class Science Matter in Our Surroundings Question Bank Matter in our Surroundings

  • question_answer
    What happens when a solid melts?

    A)  Its molecules move farther apart.  

    B)  Its molecules move closer.

    C)  The movement of its molecules decreases.

    D)  The temperature decreases although heat is supplied.

    Correct Answer: A

    Solution :

     When a solid melts, the heat supplied is used up in changing the state. During the change of state, the molecules move farther apart by overcoming the forces of attraction among them.


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