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NEET AIPMT SOLVED PAPER SCREENING 2010

  • question_answer
    AB crystallizes in a body centred cubic lattice with edge length 'a' equal to 387 pm. The distance between two oppositively charged ions in the lattice is

    A) 335 pm                

    B) 250 pm

    C) 200 pm

    D)        300 pm

    Correct Answer: A

    Solution :

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


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