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JEE Main & Advanced Chemistry The Solid State / ठोस प्रावस्था Question Bank Crystallography and Lattice

  • question_answer
    An \[fcc\] unit cell of aluminum contains the equivalent of how many atoms       [DCE 2003]

    A)                 1             

    B)                 2

    C)                 3             

    D)                 4

    Correct Answer: D

    Solution :

               \[\frac{1}{8}\times 8\] (at corners) \[=1\]                    \[\frac{1}{2}\times 6\] (at face centre) \[=3\]                                 \[Z=1+3=4\] (total no. of atoms)


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