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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Rate of decay and Half-life

  • question_answer
    If 12 g of sample is taken, and 6 g of a sample decays in 1 hr. The amount of sample showing decay in next hour is [AMU (Engg.) 1999]

    A)                 3 g

    B)                 1 g

    C)                 2 g         

    D)                 6 g

    Correct Answer: A

    Solution :

              Half-life is 1 hr and thus in each half-life, half of the sample decays.


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