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MHT CET202415 May 2024Morning ShiftChemistrySolid StateActual

A compound is formed by two elements A and B. The atoms of element B form ccp structure. The atoms of A occupy 1 3 of tetrahedral voids. What is the formula of the compound?

Options

  1. AA ₂ ~B ₃
  2. BAB
  3. CAB ₂
  4. DAB ₃

Correct answer

A. A ₂ ~B ₃

Step-by-step solution

The atoms of element B form ccp structure. The number of tetrahedral voids generated is twice the number of B atoms. Thus, number of tetrahedral voids =2 ~B aligned & The atoms of element A occupy (1 / 3) of these & tetrahedral voids. & Hence, number of A atoms =2 B 1 / 3=2 / 3 B & Ratio of A and B atoms =2 / 3 ~B : 1 ~B & =2 / 3: 1=2: 3 & Formula of compound = A ₂ ~B ₃ aligned

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