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KVPY Sample Paper KVPY Stream-SX Model Paper-5

  • question_answer
    Element 'B' forms \[ccp\] structure and 'A' occupies half the octahedral voids, while oxygen atoms occupy the tetrahedral voids. The structure of bimetallic oxide is:

    A) \[{{A}_{2}}B{{O}_{4}}\]                    

    B) \[{{A}_{4}}{{B}_{2}}O\]

    C) \[A{{B}_{2}}{{O}_{4}}\]        

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

    Correct Answer: C

    Solution :

    \[\begin{align}   & \begin{matrix}    A & : & B & : & O  \\    \frac{1}{2}(O.V.) & : & CCP & : & all\,T.V.  \\ \end{matrix} \\  & \frac{4}{2}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,:\,\,\,\,\,\,\,\,4\,\,\,\,\,\,\,\,\,\,:\,\,\,\,\,\,\,\,\,8 \\  & 2\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,:\,\,\,\,\,\,\,\,\,4\,\,\,\,\,\,\,\,\,:\,\,\,\,\,\,\,\,\,\,8 \\  & 1\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,:\,\,\,\,\,\,\,\,\,\,2\,\,\,\,\,\,\,\,:\,\,\,\,\,\,\,\,\,\,\,4 \\ \end{align}\] \[A{{B}_{2}}{{O}_{4}}.\]


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