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JEE Main & Advanced Chemistry Surface & Nuclear Chemistry / भूतल और नाभिकीय रसायन Question Bank Causes of radioactivity and Group displacement law

  • question_answer
    \[_{72}^{180}X\xrightarrow{2\alpha }\xrightarrow{\beta }\xrightarrow{\gamma }\,_{Z}^{A}{X}'\].\[Z\] and \[A\]are                [DPMT 2005]

    A)                 69, 172 

    B)                 172, 69

    C)                 180, 70 

    D)                 182, 68

    Correct Answer: A

    Solution :

                    \[_{72}^{180}X\xrightarrow{2\alpha }\,_{68}^{172}P\xrightarrow{\beta }\,_{69}^{172}Q\xrightarrow{\gamma }\,_{69}^{172}X\].


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