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Railways Sample Paper RRB (Group D) Sample Test Paper-3

  • question_answer
    As which one of the following, does carbon occur in its purest form in nature?

    A)  Carbon black    

    B)  Graphite

    C)  Diamond         

    D)  Coal

    Correct Answer: C

    Solution :

    [c] Diamond occurs in its purest form of carbon black in nature.


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