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

  • question_answer
    Which of the following is NOT a compound?

    A)  Sugar                          

    B)  Common salt

    C)  Diamond           

    D)         Plaster of Paris

    Correct Answer: C

    Solution :

     Diamond is an allotrope of carbon. It is made up of repeating units of carbon atoms joined to four other carbon atoms forming the world's hardest natural material.


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