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NEET Sample Paper NEET Sample Test Paper-25

  • question_answer
    AB crystallises in a bcc lattice with edge length 'a' equal to 387 pm. The distance between two oppositely charged ions in the lattice is

    A)  335 pm

    B)  250 pm

    C)  200 pm

    D)  300 pm

    Correct Answer: A

    Solution :

     For body-centered cubic (bcc) lattice, Distance between two oppositely charged ions,             \[d=\frac{\sqrt{3}a}{2}\] \[=\frac{\sqrt{3}\times 387}{2}=335.15\,pm\]


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