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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Artificial Transmutation

  • question_answer
    \[1.0\,gm\] radioactive sodium on decay becomes \[0.25\,gm\] in 16 hours. How much time \[48\,gm\] of same radioactive sodium will need to become \[3.0\,gm\]

    A)                 48 hours              

    B)                 32 hours

    C)                 20 hours              

    D)                 16 hours

    Correct Answer: B

    Solution :

              48 gm of radioactive sodium will need 32 hours to become 3.0 gm.


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