NEET AIPMT SOLVED PAPER SCREENING 2009

  • question_answer
    Copper crystallises in a face-centred cubic lattice with a unit cell length of 361 pm. What is the radius of copper atom in pm?

    A) 128   

    B)                                        157                        

    C)        181                        

    D)        198 

    Correct Answer: A

    Solution :

    In case of face-centred cubic lattice, radius \[\text{mo}{{\text{l}}^{\text{-1}}}\] \[\text{mo}{{\text{l}}^{\text{-1}}}\]Radius of copper atom (fee lattice) \[\text{mo}{{\text{l}}^{\text{-1}}}\]


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