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NEET Chemistry The Solid State / ठोस प्रावस्था Question Bank Self Evaluation Test - The Solid State

  • question_answer
    A solid is made of two elements X and Z. The atoms Z are in ccp arrangement while the atoms X occupy all the tetrahedral sites. What is the formula of the compound?   

    A) XZ                               

    B) \[X{{Z}_{2}}\]

    C) \[{{X}_{2}}Z\]         

    D) \[{{X}_{2}}Z{{  }_{3}}\]

    Correct Answer: C

    Solution :

    [c] Let the number of Z atoms in the ccp arrangement = 100 Thus the number of tetrahedral sites = 200 Since all the tetrahedral sites are occupied by X atoms, the number of X atoms = 200 Hence ratio of \[X:Z=2:1\] Thus the formula is \[{{X}_{2}}Z\]


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