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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Radioactivity and a,b rays

  • question_answer
    Which of the following is radioactive element     [CPMT 1988]

    A)                 Sulphur               

    B)                 Polonium

    C)                 Tellurium            

    D)                 Selenium

    Correct Answer: B

    Solution :


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