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NEET Sample Paper NEET Sample Test Paper-24

  • question_answer
    If species \[_{a}^{b}X\]first emits a position, then two a and two\[\beta \]and in last one a and finally converted to species \[_{c}^{d}Y,\]so the correct relation is

    A) \[c=a-5,d=b-12\]           

    B) \[c=a-6,d=b-8\]

    C) \[c=a-4,d=b-12\]           

    D) \[c=a-5,d=b-8\]

    Correct Answer: A

    Solution :

     \[_{a}^{b}X\xrightarrow{{}}\,_{a-1}^{b}X+\,_{1}^{0}e\xrightarrow{-2\alpha }\,_{a-5}^{b-8}X+\,_{2}^{4}He\] \[\xrightarrow{-2\beta }\,_{a-3}^{b-8}X\xrightarrow{-\alpha }\,_{a-5}^{b-12}X+\,_{2}^{4}He\]


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