CEE Kerala Engineering CEE Kerala Engineering Solved Paper-2000

  • question_answer
    A compound formed by elements A and B crystallizes in the cubic arrangement in which A atoms are at the corners of a cube and B atoms are at the face centres. What is the formula of compound?

    A)  \[A{{B}_{3}}\]                  

    B) \[B{{  }_{3}}A\]

    C) \[{{A}_{2}}{{B}_{2}}\]                   

    D) \[A{{B}_{2}}\]

    E) \[A{{B}_{4}}\]

    Correct Answer: A

    Solution :

    The number of A atoms in the unit cell = 8/8 =1 The number of B atoms =6/2=3 Hence, the formula of the compound\[=A{{B}_{3}}\]


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