9th Class Science Is Matter Around Us Pure Question Bank Case Based MCQs - Is Matter Around us Pure

  • question_answer
    The principle of separation based on

    A) the difference in sizes of constituents

    B) the difference in physical or chemical properties of constituents

    C) the different techniques

    D) AII of the above

    Correct Answer: B

    Solution :

    [b] The principle of separation is based on the difference in physical or chemical properties of constituents of a mixture. Depending upon the kind of constituents and their respective properties, different techniques are used.


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