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  3. JIPMER

JIPMER Jipmer Medical Solved Paper-2005

  • question_answer
    The hardest substance is:

    A)  iron                      

    B)         steel    

    C)         diamond            

    D)         graphite

    Correct Answer: C

    Solution :

    The hardest substance in the nature is diamond due to complex tetrahedral structure.


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