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9th Class Science Is Matter Around Us Pure Question Bank 9th CBSE Science Is Matter Around Us Pure

  • question_answer
      Which of the following materials fall in the category of a "pure substance' (a) Ice               (&) Milk              (c) Iron (d) Hydrochloric acid (e) Calcium oxide     (f) Mercury (g) Brick            (h) Wood             (i) Air [NCERT]

    Answer:

                   Ice, iron, hydrochloric acid, calcium oxide, mercury belong to the category pure substances.


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