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JEE Main & Advanced Chemistry The Solid State / ठोस प्रावस्था Question Bank Mathematical analysis of cubic system and Bragg's equation

  • question_answer
    An element occurring in the \[bcc\] structure has \[12.08\times {{10}^{23}}\] unit cells. The total number of atoms of the element in these cells will be      [MP PET 1994]

    A)                 \[24.16\times {{10}^{23}}\]         

    B)                 \[36.18\times {{10}^{23}}\]

    C)                 \[6.04\times {{10}^{23}}\]           

    D)                 \[12.08\times {{10}^{23}}\]

    Correct Answer: A

    Solution :

           There are two atoms in a bcc unit cell.                 So, number of atoms in \[12.08\times {{10}^{23}}\] unit cells   \[=2\times 12.08\times {{10}^{23}}\] \[=24.16\times {{10}^{23}}atom\].


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