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  5. Physical and Chemical Changes

7th Class Science Physical and Chemical Changes Question Bank Physical and Chemical Changes

  • question_answer
    Some pieces of chalk are mixed with water. In this change, how many new substances is/are formed?

    A)  1

    B)  2

    C)  3

    D)  No new substance is formed.

    Correct Answer: D

    Solution :

    When few pieces of chalk are mixed with water, new substance is not formed. So, it is a physical change.


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